The word 'boost' means to make something bigger or better. Think of it like a little push. When you help a friend climb a tree by pushing their feet up, you are giving them a boost. In English, we use this word for many things. You can boost your energy by eating an apple. You can boost your grades by studying more. It is a happy word because it means things are getting better. Usually, we use 'boost' with things we like. We want to boost our health, our happiness, and our money. It is a very common word in simple sentences. For example, 'This juice will boost your health.' It is easy to remember because it sounds like a quick action. Just remember that you always boost *something*. You don't just boost by yourself. You boost your speed, you boost your power, or you boost your mood. It is a great word to use when you want to talk about making progress in a simple way.
At the A2 level, you can start using 'boost' to describe improvements in your daily life. It is a verb that means to increase or encourage something. If you feel tired, you might need something to boost your energy. If you are sad, a kind word from a friend can boost your mood. It is more specific than the word 'increase' because it usually means the increase is helpful. In business, people often talk about boosting sales, which means selling more products. In school, you might want to boost your vocabulary. When you use 'boost,' you are showing that you understand how one thing can help another thing grow. It is a regular verb, so the past tense is 'boosted.' For example, 'The sunny weather boosted my spirits yesterday.' You will often see this word in advertisements for food or vitamins that promise to make you stronger. It is a very useful word for talking about positive changes and simple goals.
For B1 learners, 'boost' is an essential verb for discussing trends and personal development. It means to improve or increase something, often by providing extra support or a 'push.' You will frequently encounter this word in news articles and work environments. For instance, a company might implement a new strategy to boost productivity. In this context, 'boost' implies that the company is taking an active step to make its workers more efficient. It is also very common in discussions about the economy, where governments try to boost consumer spending. One important thing to notice is that 'boost' is almost always used for positive things. You wouldn't usually 'boost' a problem or a debt; instead, you 'boost' solutions and profits. It's a great word to use in your writing to show a cause-and-effect relationship. For example, 'The introduction of new technology significantly boosted the factory's output.' By using 'boost' instead of just 'increase,' you add a layer of meaning that suggests the increase was a successful result of a specific action.
At the B2 level, 'boost' is a versatile tool for expressing nuanced improvements in various fields. It is defined as a transitive verb meaning to augment, encourage, or provide an upward push to something. It is a staple in professional communication, particularly in marketing, finance, and management. You might hear about 'boosting brand awareness' or 'boosting employee engagement.' In these cases, 'boost' conveys a sense of strategic enhancement. It is also widely used in technical and scientific contexts, such as 'boosting a signal' in telecommunications or 'boosting a reaction' in chemistry. B2 speakers should be able to distinguish 'boost' from its synonyms like 'enhance,' 'augment,' or 'bolster.' While 'enhance' focuses on quality and 'bolster' focuses on support, 'boost' specifically highlights the increase in level or power. You should also be careful not to confuse 'boost' with 'boast' (to brag). Using 'boost' correctly in the passive voice—'The economy was boosted by a surge in exports'—is a hallmark of an upper-intermediate speaker. It allows you to describe positive trends with precision and professional flair.
For C1 learners, 'boost' is a high-frequency verb that should be used with precision to describe complex interactions. It often functions as a catalyst for growth or improvement. In sophisticated discourse, 'boost' can describe the amplification of abstract concepts. For example, 'The senator's endorsement provided a much-needed boost to the candidate's flagging campaign.' Here, 'boost' acts as a noun, but the verbal sense of providing that lift is central. As a verb, C1 speakers use it to describe strategic interventions: 'The central bank's monetary easing was intended to boost liquidity in the financial system.' The word carries a connotation of intentionality and effectiveness. You should also be aware of its usage in specialized domains, such as 'boosting' in machine learning, which refers to an ensemble meta-algorithm for primarily reducing bias and variance. At this level, you should be comfortable using 'boost' in complex sentence structures, including participial phrases: 'Boosting its research and development budget, the firm aimed to regain its competitive edge.' Understanding the subtle rhetorical power of 'boost'—its ability to frame an increase as a deliberate and positive achievement—is key to C1 mastery.
At the C2 level, the verb 'boost' is used with complete mastery of its stylistic and contextual implications. It is recognized as a powerful rhetorical device that can frame any increase as a strategic triumph or a vital revitalization. C2 speakers use 'boost' to describe the subtle interplay of forces in economics, politics, and social psychology. For instance, 'The subtle recalibration of the algorithm was sufficient to boost user retention without compromising the integrity of the platform.' In this context, 'boost' is part of a highly technical and nuanced description of cause and effect. C2 learners also understand the historical and idiomatic depth of the word, using it in metaphors that resonate with precision. They can distinguish between a 'boost' that is a temporary stimulus and one that is a foundational shift, often pairing the verb with sophisticated adverbs like 'marginally,' 'exponentially,' or 'systemically.' Furthermore, a C2 speaker is sensitive to the register of 'boost,' knowing when to opt for more formal alternatives like 'augment' or 'ameliorate' and when the directness of 'boost' is more effective for creating impact. Mastery at this level involves not just knowing the definition, but commanding the word's ability to convey momentum, success, and purposeful elevation in any discourse.

boost in 30 Seconds

  • Boost is a verb that means to increase, improve, or provide an upward push to something, often resulting in better performance or higher levels.
  • It is commonly used in business for sales, in psychology for morale and confidence, and in health for energy and the immune system.
  • The word carries a positive connotation, suggesting a helpful intervention rather than just a natural or accidental increase in a specific metric.
  • Grammatically, it is a transitive verb, meaning it requires a direct object, such as 'boost sales' or 'boost confidence' in a sentence.

The verb boost is a dynamic and versatile word that fundamentally describes the action of pushing something upward or increasing its power, value, or effectiveness. At its core, to boost is to provide an extra bit of energy or support that helps something reach a higher level than it could achieve on its own. Imagine a child trying to climb over a fence; when an adult places their hands under the child's feet and pushes them up, they are literally giving them a boost. This physical imagery translates perfectly into the metaphorical uses we see in everyday English. Whether we are talking about economics, psychology, mechanics, or social dynamics, the word 'boost' implies a positive intervention that results in growth or improvement. It is not just a passive increase; it is an active, often intentional, enhancement. People use this word when they want to highlight a specific cause-and-effect relationship where a certain action leads to a significant rise in a metric or a feeling. For instance, in the world of business, a company might launch a marketing campaign specifically designed to boost sales during the holiday season. Here, the 'boost' is the result of the strategic effort. In the realm of health, we often hear about foods or supplements that can boost the immune system, suggesting that these items provide the body with the extra strength it needs to fight off illness. The word carries a connotation of helpfulness and progress, making it a staple in professional, academic, and casual conversations alike.

Physical Origin
The term likely emerged from the physical act of lifting someone from below, providing a 'leg up' to reach a higher point.

The coach gave a speech that really helped boost the team's morale before the final game.

Furthermore, the word 'boost' is frequently employed in technical contexts. In automotive engineering, a turbocharger is used to boost the engine's power by forcing more air into the combustion chamber. In this sense, 'boost' refers to a measurable increase in pressure and performance. Similarly, in the digital age, we talk about boosting social media posts, which means paying for a service to ensure the post reaches a wider audience than it would organically. This modern usage aligns perfectly with the traditional definition: taking something that exists and giving it a 'push' to make it more visible or powerful. The psychological aspect of 'boosting' is equally important. We often talk about boosting someone's confidence or ego. This implies that the person was perhaps feeling low or uncertain, and a specific event—like a compliment or a success—provided the necessary lift to their self-esteem. It is a word that encapsulates the idea of positive momentum. When you boost something, you are not just making it bigger; you are making it better, stronger, and more capable of achieving its goals. It is a proactive verb that suggests a solution-oriented mindset, focusing on how to elevate a situation from its current state to a more desirable one.

Economic Context
Governments often implement tax cuts to boost consumer spending and stimulate the national economy.

Adding fresh herbs can boost the flavor of a simple soup significantly.

In summary, 'boost' is a word that bridges the gap between the physical and the abstract. It describes an action that is universally understood as helpful and elevating. Whether it is a mechanical boost in a car, a financial boost in a bank account, or an emotional boost in a friendship, the word consistently points toward improvement. It is a high-frequency word in news headlines because it succinctly describes progress. 'New Policy to Boost Jobs' or 'Innovation Boosts Productivity' are common phrases that catch the reader's eye by promising a positive upward trend. Understanding the nuances of 'boost' allows a speaker to convey not just the fact of an increase, but the positive intention and the helpful nature of that increase. It is a word of encouragement and empowerment, reflecting a desire to see things rise to their full potential.

Social Media Usage
To 'boost' a post usually involves paying the platform to show it to more people, increasing its engagement metrics.

A good night's sleep is the best way to boost your brain power for the next day.

Using the verb boost correctly requires understanding its grammatical structure as a transitive verb. This means that when you use 'boost,' you must specify what is being increased or improved. You don't just 'boost'; you boost your grades, you boost your confidence, or you boost your speed. The sentence structure typically follows the pattern: Subject + Boost + Object. For example, 'The new software will boost our efficiency.' In this sentence, 'the new software' is the subject doing the action, and 'efficiency' is the object receiving the benefit. Because 'boost' is a regular verb, its forms are straightforward: boost (base), boosts (third-person singular), boosted (past and past participle), and boosting (present participle). This simplicity makes it an easy word to integrate into various tenses. You can say, 'I am boosting my energy with coffee,' or 'They have boosted their production by twenty percent.' The versatility of the word allows it to fit into formal reports as well as casual conversations without sounding out of place.

Transitive Pattern
Subject + boost + [Noun Phrase]. Example: 'The exercise boosted her mood.'

We need to find a way to boost our online presence if we want to attract more customers.

One of the most common ways to use 'boost' is in the passive voice, particularly in news reporting or academic writing. When the focus is on the thing being improved rather than the person or thing doing the improving, the passive voice is ideal. For instance, 'Confidence in the market was boosted by the recent announcement of lower interest rates.' Here, the emphasis is on the 'confidence' and the fact that it went up. This structure is very common in financial journalism. Another interesting way to use 'boost' is in the infinitive form to express purpose. 'The company hired a new CEO to boost morale.' This explains the 'why' behind an action. It's also worth noting that 'boost' can be used with adverbs to indicate the degree of the increase. You can 'significantly boost,' 'slightly boost,' or 'dramatically boost' something. These modifiers help provide a clearer picture of the impact. For example, 'The new tax law significantly boosted small business growth.' This tells the reader that the change was not just minor, but had a substantial effect.

Passive Voice
[Object] + was/were boosted by + [Subject]. Example: 'The economy was boosted by the tourism boom.'

The athlete took legal supplements to boost his performance during the marathon.

When using 'boost' in a sentence, it is also important to consider the context of the increase. While 'boost' is generally positive, it can sometimes be used in a more neutral or even negative context if the thing being boosted is undesirable. However, this is rare. Usually, if you are 'boosting' something, you want it to go up. If you were to say 'The error boosted our costs,' it sounds slightly awkward because 'boost' usually implies a helpful push. In such cases, 'increased' or 'raised' might be more appropriate. Therefore, a key tip for using 'boost' effectively is to ensure that the object of the verb is something that people generally want more of. Common objects include 'sales,' 'confidence,' 'morale,' 'energy,' 'performance,' 'efficiency,' and 'visibility.' By sticking to these positive or neutral-but-constructive nouns, you ensure that your use of 'boost' aligns with its natural linguistic flavor. It is a word that carries an inherent sense of optimism and progress, and your sentence structure should reflect that.

Infinitive of Purpose
Using 'to boost' to explain why an action was taken. Example: 'She studied late to boost her exam scores.'

The government is launching a new initiative to boost literacy rates among young children.

The word boost is ubiquitous in modern English, appearing in a wide variety of environments from the boardroom to the locker room. In the world of business and finance, it is perhaps one of the most frequently used verbs. You will hear it in quarterly earnings calls, where executives discuss strategies to 'boost shareholder value' or 'boost profit margins.' Financial news outlets like Bloomberg or the Wall Street Journal use it constantly in headlines to describe market movements. For example, 'Tech Stocks Boost S&P 500' is a classic headline structure. In these contexts, 'boost' serves as a concise way to say that one factor caused another to rise. It conveys a sense of causality and positive momentum that is essential for financial reporting. If you work in marketing or sales, 'boost' is a word you likely use every day. You might talk about 'boosting engagement' on a social media post or 'boosting conversion rates' on a website. In this professional sphere, the word is synonymous with optimization and success.

Business and Finance
Commonly used to describe increases in stock prices, profits, and economic indicators.

The central bank's decision to keep rates low is expected to boost borrowing and investment.

Another major area where you will encounter 'boost' is in health and fitness. The wellness industry is built on the promise of 'boosting' various bodily functions. You'll see products that claim to 'boost your metabolism,' 'boost your energy levels,' or 'boost your brain power.' In the gym, trainers might talk about exercises that 'boost your heart rate.' During the cold and flu season, advertisements for vitamins and supplements are everywhere, promising to 'boost your immune system.' In this context, 'boost' is a powerful marketing term because it suggests a quick and effective way to improve one's health. It appeals to our desire for enhancement and protection. Similarly, in sports, commentators often talk about a team getting a 'boost' from a returning player or a home crowd. 'The return of their star striker gave the team a massive boost,' is a typical sentence you might hear during a football match. Here, the word describes an intangible but palpable increase in confidence and performance.

Health and Wellness
Used to market supplements and lifestyle habits that claim to improve physical or mental functions.

Drinking green tea is often cited as a natural way to boost your metabolism.

Finally, 'boost' has a significant presence in technology and gaming. In the world of computers, you might 'boost' your Wi-Fi signal with an extender or 'boost' your PC's performance by adding more RAM. In video games, 'boosting' is a well-known term. It can refer to a 'power-up' that gives your character a temporary advantage, like extra speed or strength. However, it also has a more controversial meaning in competitive gaming: 'rank boosting.' This is when a high-skilled player logs into a lower-skilled player's account to 'boost' their rank. While this is often against the rules of the game, the use of the word 'boost' remains consistent with its core meaning of providing an upward push. Whether it's a legitimate technical enhancement or a questionable gaming tactic, 'boost' is the go-to word for describing a rapid ascent in status or capability. From the high-stakes world of global finance to the casual world of online gaming, 'boost' is a word that perfectly captures the modern obsession with improvement and speed.

Technology and Gaming
Refers to increasing signal strength, hardware performance, or player rankings.

I need to buy a signal extender to boost the Wi-Fi in the upstairs bedroom.

While boost is a relatively simple word, there are several common mistakes that learners and even native speakers occasionally make. The most frequent error is confusing 'boost' with the similar-sounding word 'boast.' Although they sound alike, their meanings are entirely different. To 'boost' means to increase or improve something, while to 'boast' means to brag or speak with excessive pride about one's achievements. For example, saying 'He boosted about his high test scores' is incorrect; it should be 'He boasted about his high test scores.' Conversely, 'The good news boasted my confidence' is also wrong; it should be 'The good news boosted my confidence.' This confusion is particularly common because both words often appear in contexts involving success or achievement, but the direction of the action is different: 'boost' is something that happens *to* a quality or metric, while 'boast' is something a *person* does.

Boost vs. Boast
Boost = to increase/improve. Boast = to brag/show off. Don't mix them up!

Incorrect: The new marketing plan will boast our sales by ten percent. (Should be 'boost')

Another common mistake involves the misuse of 'boost' with negative objects. As mentioned previously, 'boost' almost always implies a helpful or positive increase. Using it for something negative can create a confusing or unintentionally humorous sentence. For instance, saying 'The bad weather boosted the number of accidents' sounds strange to a native speaker. While technically the number of accidents did increase, 'boost' suggests that this was a desired or helpful outcome. In this case, 'increased,' 'caused a rise in,' or 'led to an increase in' would be much better choices. The word 'boost' carries a 'pro-improvement' bias. If you use it to describe the growth of something harmful, like a disease, a debt, or a failure, you are using the word against its natural grain. Always ask yourself: 'Is this an increase that someone would want?' If the answer is no, 'boost' is probably not the right word.

Negative Objects
Avoid: 'The crisis boosted the unemployment rate.' Use: 'The crisis increased the unemployment rate.'

Correct: The new scholarship program is designed to boost university enrollment.

A third mistake is using 'boost' as an intransitive verb. Remember, 'boost' needs an object. You cannot simply say 'The economy boosted last year.' You must say 'The economy was boosted last year' (passive) or 'The new policy boosted the economy' (active). Some learners confuse 'boost' with 'rise' or 'grow,' which are intransitive and don't need an object. You can say 'The economy grew,' but you cannot say 'The economy boosted.' This is a subtle grammatical point, but it's important for achieving a natural-sounding flow in your English. Finally, be careful with the preposition 'up.' While 'boost up' is sometimes heard in very casual speech (like 'Boost me up so I can see!'), in most professional and written contexts, the 'up' is redundant. 'The news boosted the stock price' is cleaner and more standard than 'The news boosted up the stock price.' By avoiding these common pitfalls—confusing it with 'boast,' using it for negative increases, forgetting the object, and adding unnecessary prepositions—you will be able to use 'boost' with the precision and confidence of a native speaker.

Intransitive Error
Incorrect: 'Our profits boosted significantly.' Correct: 'Our profits increased significantly' or 'We boosted our profits.'

The teacher's praise boosted the student's interest in science.

To truly master the verb boost, it is helpful to understand how it compares to its synonyms. While 'boost' is a great all-purpose word, sometimes a more specific alternative can make your writing or speaking more precise. The most common synonym is increase. However, 'increase' is a neutral word that simply means to make something larger in amount or size. It doesn't carry the same 'helpful push' connotation that 'boost' does. For example, 'The price increased' is a simple statement of fact, but 'The marketing campaign boosted sales' implies a successful effort. Another close synonym is enhance. 'Enhance' is often used when talking about improving the quality or appearance of something, like 'enhancing a photo' or 'enhancing your reputation.' While 'boost' can also mean improve, it usually focuses more on the *level* or *amount* of something, whereas 'enhance' focuses on the *excellence* or *value*.

Boost vs. Increase
Boost implies a helpful, intentional push. Increase is a neutral description of growth.

While 'increase' is factual, boost adds a sense of positive energy to the sentence.

In more formal or academic contexts, you might consider words like augment or amplify. To 'augment' something is to make it greater by adding to it, such as 'augmenting your income' with a second job. This is very similar to 'boost' but sounds more formal. 'Amplify' is specifically used when talking about making something stronger or more intense, like 'amplifying a sound' or 'amplifying the impact of a crisis.' If you are talking about giving someone encouragement, bolster is an excellent alternative. To 'bolster' means to support or strengthen, and it is frequently used with abstract nouns like 'bolster confidence' or 'bolster an argument.' While you can 'boost confidence,' 'bolster' suggests a more structural or foundational kind of support. It's like adding a pillar to a building to keep it from falling, whereas 'boost' is like giving it a quick lift.

Boost vs. Bolster
Boost is a quick lift or increase. Bolster is a more structural, long-term strengthening.

The government's new policy aims to bolster the healthcare system against future pandemics.

Finally, in very casual settings, you might hear words like jack up or pump up. 'Jack up' is often used for prices, as in 'They jacked up the price of gas,' and it usually has a negative connotation (suggesting the increase was unfair). 'Pump up' is common in sports and fitness, like 'pumping up the crowd' or 'pumping up your muscles.' Both are much more informal than 'boost.' Choosing the right word depends on your audience and the specific kind of increase you are describing. If you want to sound professional yet energetic, 'boost' is usually your best bet. If you want to be purely factual, go with 'increase.' If you want to emphasize quality, choose 'enhance.' And if you want to sound more sophisticated, 'augment' or 'bolster' are great choices. By having this range of alternatives at your disposal, you can tailor your language to fit any situation perfectly, ensuring that your message is both clear and impactful.

Casual Alternatives
'Pump up' (enthusiasm/muscles) and 'Jack up' (prices - often negative).

The music was designed to pump up the players before they ran onto the field.

How Formal Is It?

Formal

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Neutral

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Informal

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Child friendly

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Slang

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Fun Fact

Before it became a common verb for 'increase,' it was used as a slang term for a 'leg up' in the 1800s.

Pronunciation Guide

UK /buːst/
US /buːst/
The word is a single syllable, so the stress is on the entire word.
Rhymes With
roost juiced loosed sluiced reduced (near) produced (near) induced (near) seduced (near)
Common Errors
  • Pronouncing it like 'bust' (which means to break).
  • Confusing the 'oo' sound with the 'u' in 'put'.
  • Dropping the 't' at the end.
  • Confusing it with 'boast' (which has an 'oh' sound).
  • Adding an extra syllable like 'boost-ed' when it should be 'boost'.

Difficulty Rating

Reading 2/5

Commonly found in news and simple texts.

Writing 3/5

Requires understanding of transitive verb patterns.

Speaking 2/5

Easy to pronounce and very useful in conversation.

Listening 2/5

Distinct sound, though can be confused with 'boast'.

What to Learn Next

Prerequisites

increase improve help up push

Learn Next

enhance augment bolster stimulate catalyst

Advanced

ameliorate intensify escalate proliferate magnify

Grammar to Know

Transitive Verbs

You must boost *something* (e.g., 'boost sales').

Passive Voice

The economy *was boosted* by the news.

Infinitive of Purpose

He exercised *to boost* his health.

Adverb Placement

The plan *significantly boosted* the results.

Gerunds as Subjects

*Boosting* morale is the manager's main goal.

Examples by Level

1

Eat fruit to boost your energy.

Mange des fruits pour augmenter ton énergie.

Simple transitive verb: boost + energy.

2

A smile can boost your mood.

Un sourire peut améliorer ton humeur.

Modal verb 'can' followed by base form 'boost'.

3

I want to boost my English skills.

Je veux améliorer mes compétences en anglais.

Infinitive 'to boost' expressing a goal.

4

The sun helps boost the plants.

Le soleil aide à faire pousser les plantes.

Verb 'help' followed by base form 'boost'.

5

This game will boost your brain.

Ce jeu va stimuler ton cerveau.

Future tense with 'will'.

6

Can you boost me up?

Peux-tu me soulever ?

Phrasal use 'boost up' in a physical sense.

7

Music can boost your speed when you run.

La musique peut augmenter ta vitesse quand tu cours.

Boost + speed.

8

Good food boosts your health.

La bonne nourriture améliore ta santé.

Third-person singular 'boosts'.

1

The new shoes boosted his running speed.

Les nouvelles chaussures ont augmenté sa vitesse de course.

Past tense 'boosted'.

2

She took vitamins to boost her immune system.

Elle a pris des vitamines pour renforcer son système immunitaire.

Infinitive of purpose 'to boost'.

3

The teacher's praise boosted the girl's confidence.

Les éloges du professeur ont renforcé la confiance de la jeune fille.

Boost + abstract noun 'confidence'.

4

Adding salt can boost the flavor of the meat.

Ajouter du sel peut relever le goût de la viande.

Boost + flavor.

5

We need to boost our sales this month.

Nous devons augmenter nos ventes ce mois-ci.

Need to + boost.

6

A coffee in the morning boosts my productivity.

Un café le matin augmente ma productivité.

Present simple for a habit.

7

The app helps boost your vocabulary every day.

L'application aide à enrichir votre vocabulaire chaque jour.

Help + boost.

8

The fan boosted the air circulation in the room.

Le ventilateur a amélioré la circulation de l'air dans la pièce.

Boost + physical process.

1

The government is trying to boost the economy by cutting taxes.

Le gouvernement essaie de relancer l'économie en réduisant les impôts.

Present continuous 'is trying' + infinitive 'to boost'.

2

The marketing team launched a campaign to boost brand awareness.

L'équipe marketing a lancé une campagne pour accroître la notoriété de la marque.

Boost + compound noun 'brand awareness'.

3

A good night's sleep is essential to boost your cognitive function.

Une bonne nuit de sommeil est essentielle pour stimuler vos fonctions cognitives.

Adjective 'essential' + infinitive 'to boost'.

4

The player's return from injury gave the whole team a boost.

Le retour de blessure du joueur a redonné un coup de fouet à toute l'équipe.

Used as a noun here, but related to the verbal action.

5

We are looking for ways to boost employee morale during the winter.

Nous cherchons des moyens de remonter le moral des employés pendant l'hiver.

Boost + abstract noun 'morale'.

6

The new software significantly boosted our data processing speed.

Le nouveau logiciel a considérablement augmenté notre vitesse de traitement des données.

Adverb 'significantly' modifying 'boosted'.

7

The charity event helped boost the organization's public profile.

L'événement caritatif a aidé à accroître la visibilité de l'organisation.

Boost + 'public profile'.

8

You can boost your chances of success by preparing early.

Vous pouvez augmenter vos chances de réussite en vous préparant tôt.

Boost + 'chances of success'.

1

The central bank's intervention was designed to boost market liquidity.

L'intervention de la banque centrale visait à accroître la liquidité du marché.

Passive construction 'was designed to boost'.

2

The company is investing in R&D to boost its competitive advantage.

L'entreprise investit dans la R&D pour renforcer son avantage concurrentiel.

Boost + 'competitive advantage'.

3

The coach's halftime speech really boosted the players' spirits.

Le discours de l'entraîneur à la mi-temps a vraiment remonté le moral des joueurs.

Boost + 'spirits' (idiomatic for morale).

4

We need to boost our online engagement to reach a younger demographic.

Nous devons accroître notre engagement en ligne pour atteindre une population plus jeune.

Boost + 'online engagement'.

5

The new turbocharger is designed to boost the engine's horsepower.

Le nouveau turbocompresseur est conçu pour augmenter la puissance du moteur.

Technical usage of 'boost'.

6

The celebrity's endorsement significantly boosted the book's sales.

Le soutien de la célébrité a considérablement dopé les ventes du livre.

Boost + 'sales'.

7

Regular exercise is known to boost the production of endorphins.

On sait que l'exercice régulier stimule la production d'endorphines.

Passive 'is known to' + boost.

8

The government introduced subsidies to boost the renewable energy sector.

Le gouvernement a introduit des subventions pour stimuler le secteur des énergies renouvelables.

Boost + industrial sector.

1

The fiscal stimulus package was intended to boost aggregate demand.

Le plan de relance budgétaire visait à stimuler la demande globale.

Academic economic terminology: 'aggregate demand'.

2

The discovery of new oil reserves boosted the nation's economic outlook.

La découverte de nouvelles réserves de pétrole a amélioré les perspectives économiques du pays.

Boost + 'economic outlook'.

3

The author used vivid imagery to boost the emotional impact of the story.

L'auteur a utilisé des images frappantes pour renforcer l'impact émotionnel de l'histoire.

Boost + 'emotional impact'.

4

The company's decision to rebrand was a strategic move to boost its market share.

La décision de l'entreprise de changer d'image était une démarche stratégique pour accroître sa part de marché.

Boost + 'market share'.

5

The researchers found that the drug could boost the regeneration of nerve cells.

Les chercheurs ont découvert que le médicament pouvait stimuler la régénération des cellules nerveuses.

Boost + biological process 'regeneration'.

6

The city council implemented a new zoning law to boost urban development.

Le conseil municipal a mis en œuvre une nouvelle loi de zonage pour stimuler le développement urbain.

Boost + 'urban development'.

7

The unexpected victory boosted the morale of the entire political party.

La victoire inattendue a remonté le moral de tout le parti politique.

Boost + 'morale'.

8

The use of advanced algorithms helped boost the efficiency of the logistics network.

L'utilisation d'algorithmes avancés a permis d'accroître l'efficacité du réseau logistique.

Boost + 'efficiency'.

1

The central bank's hawkish stance failed to boost the flagging currency.

La position ferme de la banque centrale n'a pas réussi à soutenir la monnaie en perte de vitesse.

C2 level vocabulary: 'hawkish stance', 'flagging currency'.

2

The intricate plot twists were designed to boost the suspense of the noir thriller.

Les rebondissements complexes de l'intrigue étaient conçus pour renforcer le suspense du thriller noir.

Boost + 'suspense'.

3

The implementation of the new trade agreement is expected to boost bilateral relations.

La mise en œuvre du nouvel accord commercial devrait renforcer les relations bilatérales.

Boost + 'bilateral relations'.

4

The artist sought to boost the luminosity of the painting by using gold leaf.

L'artiste a cherché à accentuer la luminosité du tableau en utilisant de la feuille d'or.

Boost + 'luminosity'.

5

The CEO's visionary leadership was instrumental in boosting the firm's global standing.

Le leadership visionnaire du PDG a joué un rôle déterminant dans l'amélioration du rang mondial de l'entreprise.

Boost + 'global standing'.

6

The study explores how environmental factors can boost the phenotypic expression of certain genes.

L'étude explore comment les facteurs environnementaux peuvent stimuler l'expression phénotypique de certains gènes.

Scientific usage: boost + 'phenotypic expression'.

7

The strategic alliance was forged to boost the collective bargaining power of the smaller nations.

L'alliance stratégique a été forgée pour accroître le pouvoir de négociation collectif des plus petites nations.

Boost + 'bargaining power'.

8

The philosopher argued that true education should boost the individual's capacity for critical thought.

Le philosophe a soutenu que la véritable éducation devrait renforcer la capacité de l'individu à la pensée critique.

Boost + 'capacity for critical thought'.

Antonyms

Common Collocations

boost morale
boost sales
boost confidence
boost energy
boost productivity
boost the economy
boost performance
boost the signal
boost immunity
boost visibility

Common Phrases

give someone a boost

— To help someone physically or emotionally. It can mean a literal lift or a word of encouragement.

He gave her a boost to help her over the wall.

a boost to the system

— Something that provides a sudden increase in energy or alertness. Often used for food or cold water.

The cold shower was a real boost to the system.

boost the signal

— To share information widely so more people see it. Common on social media.

Please retweet this to boost the signal for the missing cat.

boost one's ego

— To make someone feel more important or proud. Often used slightly negatively.

He only said that to boost his own ego.

boost the bottom line

— To increase the net profit of a business. A common corporate idiom.

Reducing waste will directly boost the bottom line.

a much-needed boost

— An improvement that was very necessary because the situation was bad.

The rain gave a much-needed boost to the dying crops.

boost the rankings

— To improve the position of something in a list or competition.

The new update helped boost the app's rankings.

boost the volume

— To make the sound louder. Simple and direct usage.

Can you boost the volume on the television?

boost the pressure

— To increase the force of a gas or liquid in a container.

The pump was used to boost the water pressure.

boost your chances

— To make it more likely that you will succeed at something.

Studying hard will boost your chances of passing.

Often Confused With

boost vs boast

Boast means to brag; boost means to increase.

boost vs bust

Bust means to break or fail; boost means to improve.

boost vs hoist

Hoist means to lift something heavy physically; boost is more general and often metaphorical.

Idioms & Expressions

"give a leg up"

— To provide help that gives someone an advantage. Similar to a physical boost.

The internship gave him a leg up in his career.

informal
"shot in the arm"

— Something that gives a sudden burst of energy, enthusiasm, or success.

The new contract was a shot in the arm for the struggling company.

informal
"kick-start"

— To make something start happening or developing more quickly.

The government hopes to kick-start the economy.

neutral
"grease the wheels"

— To make a process happen more smoothly or quickly, often with money or help.

A small donation might grease the wheels of the bureaucracy.

informal
"beef up"

— To make something stronger or more effective.

They need to beef up security before the event.

informal
"step up one's game"

— To improve one's performance or effort significantly.

If we want to win, we need to step up our game.

informal
"power up"

— To increase the energy or capability of something, often in gaming.

The hero had to power up before the final battle.

informal
"fuel the fire"

— To provide more energy or intensity to a situation, often a negative one.

His comments only fueled the fire of the controversy.

neutral
"add fuel to"

— Similar to fuel the fire, to make a situation more intense.

The news added fuel to the rumors.

neutral
"crank up"

— To increase the intensity or volume of something.

Let's crank up the music and start the party.

informal

Easily Confused

boost vs boast

Similar sound and spelling.

Boast is about pride and talking; boost is about action and increasing.

He boasted about his car, but the new engine boosted its speed.

boost vs increase

Similar meaning.

Increase is neutral; boost is usually positive and implies a 'push'.

Prices increased, but the sale boosted our customer numbers.

boost vs enhance

Both mean improve.

Enhance focuses on quality; boost focuses on level or power.

The filter enhanced the photo, while the ad boosted its views.

boost vs bolster

Both mean strengthen.

Bolster implies structural support; boost implies an upward push.

We bolstered the wall and boosted the room's height.

boost vs raise

Both mean move up.

Raise is a general movement; boost is a helpful increase.

He raised his hand to ask how to boost his grades.

Sentence Patterns

A1

Boost + [Noun]

Boost your energy.

A2

Can boost + [Noun]

This can boost your mood.

B1

To boost + [Noun Phrase]

He studied to boost his test scores.

B2

[Subject] boosted [Object] by [Amount]

The company boosted sales by 10%.

C1

Boosting [Object], [Subject] [Verb]

Boosting its budget, the firm hired more staff.

C2

[Subject] was instrumental in boosting [Object]

Her leadership was instrumental in boosting the firm's standing.

B1

Give [Someone] a boost

The news gave her a real boost.

B2

Designed to boost

The program is designed to boost literacy.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

Very high in business, health, and sports contexts.

Common Mistakes
  • He boosted about his new job. He boasted about his new job.

    You use 'boast' to mean brag. 'Boost' means to increase something.

  • The bad news boosted my sadness. The bad news increased my sadness.

    'Boost' is usually for positive things. For negative emotions, use 'increased'.

  • Our profits boosted last year. Our profits were boosted last year.

    'Boost' needs an object or must be in the passive voice. Profits cannot 'boost' by themselves.

  • I need to boost up my computer. I need to boost my computer's performance.

    'Boost up' is redundant and slightly informal. Just use 'boost' with a specific object.

  • The medicine boosted the disease. The medicine worsened the disease.

    Never use 'boost' for something harmful like a disease unless you want it to grow.

Tips

Use for Positive Growth

Always use 'boost' when you want to describe an increase that is helpful, intentional, or successful. It adds a positive tone to your English.

Remember the Object

Since 'boost' is a transitive verb, always make sure you have a noun after it. You don't just 'boost'; you 'boost sales'.

Pair with Adverbs

To make your writing more descriptive, use adverbs like 'significantly,' 'greatly,' or 'slightly' before the word 'boosted'.

Long 'OO' Sound

Make sure to pronounce the 'oo' in 'boost' like the 'oo' in 'moon'. It should be a long, clear sound.

Professional Contexts

In a job interview or meeting, use 'boost' to talk about how you improved results. It sounds more proactive than just saying 'increased'.

Health and Wellness

When talking about diet or exercise, 'boost' is the perfect word for metabolism, energy, and immunity.

Avoid 'Boast' Confusion

Double-check that you aren't using 'boost' when you mean 'brag'. 'He boasted about his win' is different from 'The win boosted his career'.

Infinitive of Purpose

Use 'to boost' to explain the goal of an action. 'The company lowered prices to boost sales' is a very clear and effective sentence structure.

Social Media Terms

Understand that 'boosting a post' is a specific technical term for paying for more views on platforms like Facebook or Instagram.

Give a Boost

The phrase 'give someone a boost' is a very kind and common way to say you helped someone feel better or reach a goal.

Memorize It

Mnemonic

Think of a 'BOOT' pushing something 'UP'. BO-OST = BOOT UP. When you boost something, you give it a kick to go higher.

Visual Association

Imagine a rocket ship getting an extra 'booster' rocket to help it leave the Earth's atmosphere.

Word Web

Sales Confidence Energy Morale Signal Economy Performance Immunity

Challenge

Write three sentences about how you can boost your productivity at work or school today.

Word Origin

The word 'boost' is of American origin, first appearing in the early 19th century.

Original meaning: It originally meant to lift or push someone up from behind.

English (Germanic roots, though the exact lineage is debated).

Cultural Context

No major sensitivities, but be careful not to use 'boost' when describing the growth of negative things like crime or poverty.

Commonly used in political speeches to promise economic growth.

The 'Booster' rockets used by NASA. Social media 'Boost Post' buttons. Energy drinks marketed as 'Energy Boosters'.

Practice in Real Life

Real-World Contexts

Business

  • boost revenue
  • boost market share
  • boost efficiency
  • boost profits

Health

  • boost metabolism
  • boost immune system
  • boost energy levels
  • boost brain power

Psychology

  • boost self-esteem
  • boost morale
  • boost confidence
  • boost mood

Technology

  • boost signal
  • boost performance
  • boost speed
  • boost storage

Sports

  • boost performance
  • boost team spirit
  • boost stamina
  • boost speed

Conversation Starters

"What is the best way to boost your energy when you feel tired in the afternoon?"

"Do you think social media companies should allow people to boost their posts for money?"

"How can a teacher boost a student's confidence if they are struggling with a subject?"

"What kind of music do you listen to when you want to boost your mood?"

"In your opinion, what is the most effective way for a government to boost the economy?"

Journal Prompts

Write about a time when someone gave you a boost of confidence. What did they say or do to help you?

Describe three things you can do this week to boost your productivity at work or school.

If you could boost any one of your skills instantly, which one would it be and why?

Think about a local business you like. How could they boost their sales to become more successful?

Reflect on how your mood is boosted by different types of weather. Do you prefer sun or rain?

Frequently Asked Questions

10 questions

Generally, no. 'Boost' implies a helpful or positive increase. For negative things like 'crime' or 'debt,' it is better to use 'increase' or 'raise' because 'boost' sounds like you are happy about the growth.

In casual speech, people say 'boost up,' especially when physically lifting someone. However, in writing and professional contexts, the 'up' is usually unnecessary and should be avoided for a cleaner sentence.

'Boost' usually refers to increasing the *amount*, *level*, or *power* of something (like sales or energy). 'Enhance' refers to improving the *quality* or *beauty* of something (like a photo or a flavor).

Yes, 'boost' is also a noun. It means an increase or a helpful push. For example, 'The win gave the team a big boost.' It is very common in both verb and noun forms.

It is a neutral word. It is perfectly acceptable in formal business reports and academic writing, but it is also used every day in casual conversation and slang.

In gaming, 'boosting' can mean using a power-up to go faster, or it can mean a high-level player helping a low-level player increase their rank, which is often against the rules.

You use it with a form of 'to be' and the past participle 'boosted'. For example: 'The team's morale was boosted by the victory.' This is very common in news reporting.

The most common ones are 'boost morale,' 'boost sales,' 'boost confidence,' 'boost energy,' and 'boost productivity.' These are safe and natural combinations to use.

You don't usually 'boost a person' unless you are physically lifting them. Instead, you boost a *quality* of the person, like their 'confidence,' 'mood,' or 'career'.

A 'booster shot' is an extra dose of a vaccine given to someone to 'boost' their immune system's protection after the initial dose has worn off over time.

Test Yourself 190 questions

writing

Write a sentence using 'boost' and 'energy'.

Well written! Good try! Check the sample answer below.

Correct! Not quite. Correct answer:
writing

How can you boost your English skills?

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Correct! Not quite. Correct answer:
writing

Describe how a company can boost its sales.

Well written! Good try! Check the sample answer below.

Correct! Not quite. Correct answer:
writing

Explain the importance of boosting employee morale.

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Correct! Not quite. Correct answer:
writing

Discuss the role of the central bank in boosting the economy.

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Correct! Not quite. Correct answer:
writing

What boosts your mood?

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Correct! Not quite. Correct answer:
writing

Write about a time you gave someone a boost.

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Correct! Not quite. Correct answer:
writing

How does exercise boost your health?

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Correct! Not quite. Correct answer:
writing

What are the benefits of boosting brand awareness?

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writing

Analyze the impact of technological innovation on boosting global productivity.

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Correct! Not quite. Correct answer:
writing

Use 'boost' in a question.

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writing

Use 'boosted' in a sentence.

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writing

Use 'boosting' in a sentence.

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writing

Write a sentence with 'boost' and 'confidence'.

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writing

Write a sentence with 'boost' and 'liquidity'.

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writing

What boosts your speed?

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writing

What boosts your vocabulary?

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writing

What boosts a team's morale?

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writing

What boosts an engine's power?

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writing

What boosts a nation's standing?

Well written! Good try! Check the sample answer below.

Correct! Not quite. Correct answer:
speaking

Say: 'I want to boost my energy.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Tell me one thing that boosts your mood.

Read this aloud:

Correct! Not quite. Correct answer:
speaking

How can you boost your productivity at work?

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Describe a time you boosted someone's confidence.

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Explain how a government can boost the economy.

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'This will boost your health.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'The sun boosts the plants.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'We need to boost our sales.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'The coach boosted our morale.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'The alliance boosted their bargaining power.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Boost my speed.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Boost my vocabulary.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Boost the signal.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Boost the performance.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'Boost the liquidity.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'A big boost.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'A mood boost.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'A morale boost.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'An ego boost.'

Read this aloud:

Correct! Not quite. Correct answer:
speaking

Say: 'A strategic boost.'

Read this aloud:

Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost your energy.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'The sun boosts growth.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'We need to boost sales.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'The win boosted morale.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'The bank boosted liquidity.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'A mood boost.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost your skills.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost the signal.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost productivity.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost demand.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost speed.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost power.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost mood.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost results.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
listening

Listen and write: 'Boost relations.'

Correct! Not quite. Correct answer:
Correct! Not quite. Correct answer:
error correction

He boosted about his car.

Correct! Not quite. Correct answer: He boasted about his car.
error correction

The news boosted my sadness.

Correct! Not quite. Correct answer: The news increased my sadness.
error correction

Our profits boosted significantly.

Correct! Not quite. Correct answer: Our profits were boosted significantly.
error correction

The policy was designed to boast demand.

Correct! Not quite. Correct answer: The policy was designed to boost demand.
error correction

I need to boost up my speed.

Correct! Not quite. Correct answer: I need to boost my speed.

/ 190 correct

Perfect score!

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