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B1 verb #28 most common 12 min read

multiply

Top 28

Practice it Examples Notes & Tips multiply in 30 Seconds

Explanation multiply in your Level:

At the A1 level, 'multiply' is a word you might learn when you start talking about basic math. It means to take a number and add it to itself many times. For example, if you have two apples and you multiply them by three, you now have six apples. It is like saying 'three times two.' You use it in school when you learn your 'multiplication tables.' You might also use it simply to say that something is getting much bigger very fast, like 'The toys in the room multiply when the children play.' It is a useful word for describing how things grow quickly.

At the A2 level, you use 'multiply' to talk about both math and simple biological growth. In math, you know that 'multiply' is the opposite of 'divide.' You can say, 'I need to multiply the price by the number of people.' In biology, you can use it to talk about animals or plants. 'Rabbits multiply very quickly in the spring.' You are starting to see that 'multiply' is more than just a math word; it is about things making more of themselves. It is a step up from just saying 'get more' or 'increase.'

At the B1 level, 'multiply' becomes a more flexible word. You use it to describe abstract things like problems, risks, or efforts. For example, 'If we don't fix the car now, the problems will multiply.' You also use it in business contexts to talk about growing a company or increasing profits. You understand that 'multiply' implies a significant and often rapid increase. You can use it in different sentence structures, like 'Our chances of winning will multiply if we practice more.' You are also aware of the noun form, 'multiplication,' and the adjective 'multiple.'

At the B2 level, you use 'multiply' with more precision and in more complex sentences. You might use it in the passive voice: 'The difficulties were multiplied by the bad weather.' You also use it to describe exponential growth in science or economics. You can distinguish between 'multiply' and other similar words like 'proliferate' or 'augment.' You use it to describe how one action can have many different effects. For example, 'The new law will multiply the number of people who can go to university.' You are comfortable using it in both formal and informal situations.

At the C1 level, 'multiply' is a word you use to describe complex systems and compounding effects. You might use it in academic writing to discuss how different factors interact to 'multiply' an outcome. For instance, 'The intersection of poverty and lack of education multiplies the challenges faced by urban youth.' You use it to describe nuanced proliferation in fields like sociology, politics, or advanced mathematics. You are also familiar with idiomatic expressions and can use the word to create sophisticated metaphors about growth and expansion in various professional fields.

At the C2 level, you have a masterly command of 'multiply' and its derivatives. You use it to describe the intricate ways that variables in a system can amplify each other. You might use it in philosophical discussions about the 'multiplication of desires' in a consumer society or in high-level scientific papers about 'cellular multiplication' and its implications for disease. You understand the historical and etymological roots of the word and can use it with absolute precision to convey exactly the right shade of meaning, whether you are talking about literal numbers or the metaphorical expansion of human experience.

Practice it Examples Notes & Tips

multiply in 30 Seconds

Multiply is a verb used for mathematical calculations and describing rapid growth in numbers or quantity.
It can be used transitively (to multiply something) or intransitively (something multiplies on its own).
In math, it is the opposite of division; in biology, it refers to reproduction and population growth.
Figuratively, it describes the escalation of abstract things like risks, problems, or positive impacts.

The word multiply is a versatile verb that functions in two primary domains: mathematics and general growth. At its core, to multiply means to increase the quantity of something by a specific factor. In a classroom setting, you might hear a teacher ask a student to multiply five by six to reach the product of thirty. However, the word extends far beyond the chalkboard. In biology, it describes the rapid reproduction of organisms, such as how bacteria multiply in a petri dish or how rabbits multiply in a field. In a broader, more abstract sense, we use it to describe the rapid expansion of anything from problems and risks to wealth and opportunities. When you multiply your efforts, you are not just adding a little more work; you are significantly increasing the intensity or scale of what you are doing. This word carries a sense of speed and scale that simple addition does not possess.

Mathematical Context: The process of finding the product of two or more numbers. It is one of the four basic operations of arithmetic.
Biological Context: The natural process of reproduction where organisms produce offspring, leading to a larger population over time.
Abstract Context: The rapid increase or proliferation of non-physical things, such as rumors, debts, or complications in a project.

If you do not address the small leaks in the roof now, the damage will multiply during the next heavy storm.

The word is often used in business to discuss 'multiplying revenue' or 'multiplying the customer base.' It implies a strategic growth that is more than just linear. In social contexts, we might say that our joys multiply when we share them with friends, suggesting that the happiness becomes greater than the sum of its parts. It is a word that suggests power and exponential change. Whether you are talking about cells under a microscope or the interest in a savings account, this verb captures the essence of rapid, significant increase.

The bacteria began to multiply at an alarming rate once the temperature reached thirty degrees Celsius.

To find the area of a rectangle, you must multiply the length by the width.

As the news spread through the small town, the rumors started to multiply and become more dramatic.

The investment was designed to multiply the initial capital over a period of ten years.

Transitive Use: When you multiply something (an object), such as 'multiply the numbers' or 'multiply the force.'
Intransitive Use: When something multiplies on its own, such as 'The population multiplied' or 'The problems multiplied.'

Using 'multiply' correctly requires an understanding of whether you are performing an action on something or describing a natural process. In its most basic form, you 'multiply A by B.' For example, 'If you multiply four by four, you get sixteen.' Notice the use of the preposition 'by.' This is the standard way to describe the mathematical operation. When talking about growth, the word often stands alone as an intransitive verb. 'The weeds in the garden multiplied after the rain.' Here, no one is performing the multiplication; it is happening naturally. You can also use it to describe the amplification of an effect. 'The speaker used a microphone to multiply the sound of her voice so the people in the back could hear.' In this case, 'multiply' means to increase the intensity or volume.

Mathematical Pattern: [Subject] + multiply + [Number A] + by + [Number B]. Example: 'The computer can multiply large numbers by each other in milliseconds.'
Growth Pattern: [Subject] + multiply. Example: 'Without natural predators, the deer population began to multiply rapidly.'
Effect Pattern: [Subject] + multiply + [Abstract Noun]. Example: 'The new technology will multiply our chances of success in the competitive market.'

You should multiply the total cost by the tax rate to find the final price.

In more advanced usage, 'multiply' can be used in the passive voice. 'The risks are multiplied when you do not wear a helmet.' This construction focuses on the result rather than the cause. It is also common in figurative language. 'His troubles multiplied as he tried to cover up his initial mistake.' This paints a picture of a situation spiraling out of control. When you use the word, consider the scale. If something is just getting a little bigger, 'increase' might be better. If it is growing by leaps and bounds, 'multiply' is the perfect choice. It suggests a compounding effect where each new addition creates even more growth.

The cells began to multiply within the nutrient-rich environment of the laboratory.

Our team's efforts will multiply the impact of the charity event across the city.

If we multiply the number of workers, we can finish the project in half the time.

The difficulties of the journey multiplied as the winter snow began to fall heavily.

Common Adverbs: Rapidly, quickly, exponentially, significantly, tenfold, greatly.
Common Objects: Numbers, efforts, chances, risks, effects, wealth, power.

You will encounter 'multiply' in a variety of real-world settings, each emphasizing a different aspect of its meaning. In an educational environment, it is a staple of elementary and middle school math classes. Teachers use it to explain basic arithmetic, and students use it to solve problems involving area, volume, and scaling. In the scientific community, particularly in biology and medicine, 'multiply' is the standard term for cellular reproduction and the spread of pathogens. A doctor might explain how a virus multiplies within the body, or a scientist might discuss how invasive species multiply in a new ecosystem. In these contexts, the word carries a clinical and precise weight.

In the News: Journalists often use 'multiply' to describe social or economic trends. You might hear about how 'unemployment rates are multiplying' or how 'the costs of the war are multiplying daily.'
In Business: Corporate leaders use it to talk about growth strategies. 'We need to multiply our presence in the Asian market' or 'Our goal is to multiply our annual profits by the end of the fiscal year.'
In Daily Life: People use it figuratively to describe escalating situations. 'Once I told one lie, the need for more lies just seemed to multiply.'

The news anchor reported that the number of refugees is expected to multiply as the conflict continues.

In the world of finance and investing, 'multiply' is a very positive word. Financial advisors talk about 'multiplying your wealth' through compound interest or smart stock picks. Here, the word is associated with success and prosperity. Conversely, in social justice or environmental contexts, it can be used to highlight growing problems. 'The effects of climate change will multiply the frequency of natural disasters.' In this way, the word is a powerful tool for emphasizing the scale and urgency of a situation. Whether it is used in a positive or negative sense, 'multiply' always signals that something is becoming much larger and more significant than it was before.

In the tech industry, a successful app can multiply its user base from thousands to millions in just a few months.

The professor explained that when you multiply a negative number by another negative number, the result is positive.

During the holiday season, the number of packages being shipped tends to multiply significantly.

The activist argued that poverty will multiply the social problems already facing the community.

Academic Settings: Used in math, physics, and biology lectures to describe operations and natural processes.
Professional Settings: Used in business meetings and financial reports to discuss growth and scaling.

While 'multiply' is a common word, it is frequently misused in a few specific ways. One of the most common errors is confusing the verb 'multiply' with the adjective 'multiple.' For example, someone might say 'I have multiply reasons for leaving,' which is incorrect. The correct sentence would be 'I have multiple reasons for leaving.' 'Multiply' is an action; 'multiple' is a description of quantity. Another common mistake involves the preposition used in mathematical contexts. Many learners mistakenly use 'with' or 'and' instead of 'by.' Saying 'Multiply five with five' is non-standard; the correct form is 'Multiply five by five.' Similarly, 'Multiply five and five' is often used in casual speech but is less precise than 'by' in a formal or mathematical setting.

Confusing Verb and Adjective: Incorrect: 'There are multiply ways to solve this.' Correct: 'There are multiple ways to solve this.' OR 'The ways to solve this will multiply if we wait.'
Incorrect Preposition: Incorrect: 'Multiply ten with two.' Correct: 'Multiply ten by two.'
Overusing for Simple Increases: Incorrect: 'The price multiplied by five cents.' Correct: 'The price increased by five cents.' (Multiplication implies a much larger scale than a small addition).

Many students forget that when they multiply a number by zero, the answer is always zero.

Another nuance is the difference between 'multiply' and 'increase.' While all multiplication is an increase, not all increases are multiplication. If you add one apple to a basket of five, the number of apples has increased, but it has not multiplied. Multiplication suggests a doubling, tripling, or some other factor-based growth. Using 'multiply' for a small, linear increase can sound dramatic or inaccurate. Additionally, learners sometimes struggle with the irregular noun form 'multiplication.' You 'multiply' (verb) to perform 'multiplication' (noun). Finally, be careful with the phrase 'multiply like rabbits.' While common, it is an idiom and should be used only in informal contexts to describe something increasing very quickly and perhaps uncontrollably.

It is a mistake to multiply the error by trying to fix it without proper tools.

Don't multiply your problems by ignoring your responsibilities.

The teacher corrected the student who tried to multiply the two fractions by simply adding the numerators.

If you multiply the effort, you don't always get a multiplied result; sometimes you just get tired.

Spelling Tip: The word ends in '-ply.' When changing it to the past tense, the 'y' becomes an 'i': 'multiplied.' For the noun, it becomes 'multiplication.'
Pronunciation Note: The stress is on the first syllable: MUL-ti-ply. Don't stress the 'ply' at the end.

Depending on the context, there are several words you can use instead of 'multiply' to add variety or precision to your writing. If you are talking about general growth, 'increase' is the most common and neutral alternative. However, if the growth is very fast and sudden, 'proliferate' is a sophisticated choice, often used for cells, ideas, or weapons. For something that is growing rapidly and spreading out, 'mushroom' (used as a verb) is a great figurative option. If you are talking about making something larger or more intense, 'augment' or 'amplify' might be more appropriate. In a business context, 'scale' is a popular modern term that implies growing a company or a process efficiently.

Multiply vs. Proliferate: 'Multiply' is general and can be mathematical. 'Proliferate' specifically suggests a rapid and often excessive spread of something, like 'rumors proliferated' or 'cancer cells proliferated.'
Multiply vs. Escalate: 'Multiply' focuses on the quantity or number. 'Escalate' focuses on the intensity or seriousness, such as 'the conflict escalated into a full-scale war.'
Multiply vs. Burgeon: 'Burgeon' is a more poetic or literary word meaning to grow or flourish rapidly, often used for new businesses or artistic movements.

The small startup began to burgeon into a major international corporation.

In mathematical contexts, there are fewer alternatives, as 'multiply' is a technical term. However, you might use 'find the product of' or 'scale by a factor of.' In physics, 'amplify' is often used when talking about waves or signals. For example, an amplifier 'multiplies' the signal's voltage. If you want to describe something becoming many times larger, you can use 'manifold' or 'tenfold' as adverbs with 'increase.' For example, 'The population increased tenfold.' This is often more descriptive than just saying 'multiplied.' Understanding these alternatives allows you to be more specific about the kind of growth you are describing, whether it is the steady growth of a tree or the explosive growth of a viral video.

The sound was amplified by the acoustics of the large cathedral.

The city's population mushroomed after the discovery of gold in the nearby hills.

We need to augment our current resources if we want to finish the project on time.

The number of online scams has proliferated in recent years.

Formal Alternatives: Proliferate, augment, burgeon, propagate.
Informal Alternatives: Mushroom, snow-ball, go through the roof, blow up.

How Formal Is It?

Formal

Neutral

Informal

Child friendly

Slang

Fun Fact

The root 'plicare' (to fold) is the same root found in words like 'complex' (folded together) and 'simple' (one fold). So, 'multiply' literally means 'many folds.'

Pronunciation Guide

UK /ˈmʌltɪplaɪ/

US /ˈmʌltəplaɪ/

Primary stress is on the first syllable: MUL-ti-ply.

Rhymes With

apply reply supply comply rely deny defy imply

Common Errors

Stressing the last syllable (mul-ti-PLY).
Pronouncing the 'y' like an 'ee' sound (mul-ti-plee).
Confusing the pronunciation with 'multiple' (MUL-ti-puhl).
Swallowing the middle syllable (MUL-ply).
Pronouncing the 'u' like 'oo' (MOOL-ti-ply).

Difficulty Rating

Reading 3/5

The word is common but can appear in complex scientific or economic texts.

Writing 3/5

Requires knowledge of the correct preposition 'by' and the spelling change in 'multiplied'.

Speaking 2/5

Easy to pronounce once the stress on the first syllable is mastered.

Listening 2/5

Clear pronunciation makes it easy to identify in speech.

What to Learn Next

Prerequisites

add increase number many times

Learn Next

divide fraction exponential proliferate factor

Advanced

multiplicity multiplicative manifold burgeon propagate

Grammar to Know

Changing 'y' to 'i' in the past tense.

multiply -> multiplied

Using 'by' for mathematical operations.

Multiply six by seven.

Subject-verb agreement with collective nouns.

The population multiplies (singular) vs. The people multiply (plural).

Passive voice construction.

The number was multiplied by ten.

Using adverbs to describe the rate of multiplication.

The bacteria multiplied rapidly.

Examples by Level

I can multiply two by two.

Je peux multiplier deux par deux.

Simple present tense.

Do you know how to multiply?

Sais-tu comment multiplier ?

Infinitive after 'how to'.

The rabbits multiply in the field.

Les lapins se multiplient dans le champ.

Intransitive use.

We multiply numbers in math class.

Nous multiplions des nombres en cours de maths.

Present simple.

Multiply five by three.

Multiplie cinq par trois.

Imperative mood.

The flowers multiply every year.

Les fleurs se multiplient chaque année.

Subject-verb agreement.

He likes to multiply big numbers.

Il aime multiplier de grands nombres.

Infinitive phrase.

The cats multiply quickly.

Les chats se multiplient rapidement.

Adverb 'quickly' modifies the verb.

If you multiply ten by ten, you get one hundred.

Si vous multipliez dix par dix, vous obtenez cent.

Zero conditional.

Bacteria can multiply very fast in warm water.

Les bactéries peuvent se multiplier très vite dans l'eau chaude.

Modal verb 'can'.

The problems will multiply if we don't stop.

Les problèmes vont se multiplier si nous ne nous arrêtons pas.

First conditional.

She learned to multiply fractions today.

Elle a appris à multiplier les fractions aujourd'hui.

Past simple.

The number of cars is starting to multiply.

Le nombre de voitures commence à se multiplier.

Present continuous.

We need to multiply the recipe for the party.

Nous devons multiplier la recette pour la fête.

Need to + infinitive.

The fish in the pond multiply every spring.

Les poissons de l'étang se multiplient chaque printemps.

Regular action.

Can you multiply this number by five?

Peux-tu multiplier ce nombre par cinq ?

Interrogative form.

The risks multiply when you travel alone at night.

Les risques se multiplient quand on voyage seul la nuit.

Abstract subject.

Our efforts will multiply the impact of the project.

Nos efforts multiplieront l'impact du projet.

Future tense.

The company wants to multiply its profits this year.

L'entreprise veut multiplier ses bénéfices cette année.

Transitive use.

As the news spread, the rumors began to multiply.

À mesure que la nouvelle se répandait, les rumeurs commençaient à se multiplier.

Narrative past.

You must multiply the base by the height to find the area.

Vous devez multiplier la base par la hauteur pour trouver l'aire.

Modal 'must'.

The cells multiplied rapidly under the microscope.

Les cellules se sont multipliées rapidement sous le microscope.

Past tense of 'multiply'.

Sharing your joy will multiply it.

Partager votre joie la multipliera.

Gerund as subject.

The costs of the renovation multiplied unexpectedly.

Les coûts de la rénovation se sont multipliés de manière inattendue.

Adverb 'unexpectedly'.

The complexity of the task multiplied as we added more features.

La complexité de la tâche s'est multipliée à mesure que nous ajoutions des fonctionnalités.

Subordinate clause with 'as'.

His influence multiplied after he won the prestigious award.

Son influence s'est multipliée après qu'il a remporté le prix prestigieux.

Abstract growth.

The effect of the medicine is multiplied when taken with water.

L'effet du médicament est multiplié lorsqu'il est pris avec de l'eau.

Passive voice.

The population of the city has multiplied over the last decade.

La population de la ville s'est multipliée au cours de la dernière décennie.

Present perfect.

We can multiply our chances of success by collaborating with experts.

Nous pouvons multiplier nos chances de succès en collaborant avec des experts.

Prepositional phrase 'by collaborating'.

The difficulties of the climb multiplied as the oxygen levels dropped.

Les difficultés de l'ascension se sont multipliées à mesure que les niveaux d'oxygène chutaient.

Parallel increase.

The software is designed to multiply the efficiency of the factory.

Le logiciel est conçu pour multiplier l'efficacité de l'usine.

Passive infinitive 'is designed to'.

If you multiply the force, you can move much heavier objects.

Si vous multipliez la force, vous pouvez déplacer des objets bien plus lourds.

Physics context.

The socio-economic challenges multiply when infrastructure is neglected.

Les défis socio-économiques se multiplient lorsque les infrastructures sont négligées.

Complex subject.

The digital age has multiplied the avenues for communication.

L'ère numérique a multiplié les voies de communication.

Metaphorical use.

The benefits of the new policy will multiply across several sectors.

Les avantages de la nouvelle politique se multiplieront dans plusieurs secteurs.

Future tense with 'across'.

The inherent risks of the mission were multiplied by the lack of intelligence.

Les risques inhérents à la mission ont été multipliés par le manque de renseignements.

Passive voice with agent.

The artist's creative output multiplied during her residency in Paris.

La production créative de l'artiste s'est multipliée pendant sa résidence à Paris.

Intransitive abstract use.

The data suggests that the virus will multiply exponentially without intervention.

Les données suggèrent que le virus se multipliera de manière exponentielle sans intervention.

Scientific register.

We must multiply our efforts to combat the effects of climate change.

Nous devons multiplier nos efforts pour combattre les effets du changement climatique.

Strong modal 'must'.

The sheer number of variables multiplied the complexity of the experiment.

Le nombre impressionnant de variables a multiplié la complexité de l'expérience.

Transitive use with abstract object.

The philosophical implications of the discovery multiply upon closer inspection.

Les implications philosophiques de la découverte se multiplient à un examen plus approfondi.

Abstract intransitive.

The proliferation of misinformation can multiply the divisions within a society.

La prolifération de la désinformation peut multiplier les divisions au sein d'une société.

Sociological context.

The synergy between the two companies multiplied their market dominance.

La synergie entre les deux entreprises a multiplié leur domination sur le marché.

High-level business register.

The existential threats to the species multiply as habitats are destroyed.

Les menaces existentielles pesant sur l'espèce se multiplient à mesure que les habitats sont détruits.

Advanced vocabulary.

The beauty of the symphony is multiplied by the grandeur of the venue.

La beauté de la symphonie est multipliée par la grandeur du lieu.

Passive voice with abstract nouns.

The recursive nature of the algorithm allows it to multiply its processing power.

La nature récursive de l'algorithme lui permet de multiplier sa puissance de traitement.

Technical computer science context.

The historical grievances multiplied, eventually leading to the revolution.

Les griefs historiques se sont multipliés, menant finalement à la révolution.

Narrative arc.

One must multiply the potential outcomes before making such a critical decision.

Il faut multiplier les résultats potentiels avant de prendre une décision aussi critique.

Formal 'one' as subject.

Common Collocations

multiply rapidly

multiply by

multiply exponentially

multiply efforts

multiply chances

multiply risks

multiply wealth

multiply problems

multiply tenfold

multiply force

Common Phrases

multiply and replenish

— A traditional phrase meaning to have children and fill the earth.

The ancient text commanded them to multiply and replenish the earth.

multiply like rabbits

— To reproduce or increase in number very quickly.

In this neighborhood, new coffee shops seem to multiply like rabbits.

be fruitful and multiply

— A biblical idiom encouraging reproduction and growth.

The couple was told to be fruitful and multiply.

multiply the effect

— To make the result of something much stronger.

The background music helped to multiply the effect of the sad movie scene.

multiply the complexity

— To make a situation much more difficult to understand.

Adding more rules will only multiply the complexity of the game.

multiply the benefits

— To increase the positive outcomes significantly.

The new trade agreement will multiply the benefits for both nations.

multiply the cost

— To cause the price to become many times higher.

Delays in construction will multiply the cost of the project.

multiply the speed

— To make something move or happen much faster.

The new engine will multiply the speed of the boat.

multiply the power

— To increase the strength or influence of something.

The alliance was formed to multiply the power of the small countries.

multiply the options

— To create many more choices or possibilities.

The internet has multiplied the options for finding a job.

Often Confused With

multiply vs multiple

Multiple is an adjective (e.g., multiple choice), while multiply is a verb (e.g., multiply the numbers).

multiply vs multiplication

Multiplication is the noun for the process, while multiply is the action.

multiply vs increase

Increase is a general term; multiply specifically implies growth by a factor.

Idioms & Expressions

"multiply like rabbits"

— To increase in number very rapidly and often uncontrollably.

The stray cat population in the city is multiplying like rabbits.

informal

"be fruitful and multiply"

— To have many children or to produce a lot of something successful.

The entrepreneur hoped his new business ventures would be fruitful and multiply.

formal/literary

"multiply the bread and fish"

— A reference to a miracle, meaning to make a small amount of something last for many people.

The volunteer had to multiply the bread and fish to feed all the hungry people at the shelter.

figurative

"multiply by zero"

— To negate or destroy all previous efforts or value.

One major mistake can multiply all your hard work by zero.

metaphorical

"multiply the confusion"

— To make a confusing situation even more difficult to understand.

The contradictory statements from the officials only served to multiply the confusion.

neutral

"multiply the sorrow"

— To make a sad situation even more painful.

The loss of his job only served to multiply the sorrow of losing his home.

literary

"multiply the joy"

— To increase happiness by sharing it with others.

Celebrating with family and friends will always multiply the joy of an achievement.

neutral

"multiply the force"

— To use a tool or strategy to achieve a much greater result than possible alone.

Social media can multiply the force of a grassroots political campaign.

neutral

"multiply the risk"

— To significantly increase the chance of something bad happening.

Driving in a storm will multiply the risk of having an accident.

neutral

"multiply the chances"

— To increase the probability of a positive outcome.

Buying more tickets will multiply your chances of winning the lottery, but only slightly.

neutral

Easily Confused

multiply vs multiple

They look and sound similar.

Multiple is an adjective meaning 'many' or 'several.' Multiply is a verb meaning 'to increase in number.'

I have multiple (adj) tasks to do, and they will multiply (verb) if I don't start now.

multiply vs multitude

Both start with 'multi-'.

Multitude is a noun meaning 'a large number of people or things.' Multiply is the action of increasing.

A multitude of fans watched the band's popularity multiply.

multiply vs multiplex

Technical similarity.

Multiplex is usually an adjective or noun referring to a cinema with many screens or a system with multiple signals. Multiply is the verb.

The number of screens in the multiplex will multiply next year.

multiply vs multi-level

Prefix similarity.

Multi-level describes something with many layers or tiers. Multiply is the action of adding those layers.

The multi-level marketing scheme tried to multiply its members.

multiply vs multi-task

Prefix similarity.

Multi-tasking is doing many things at once. Multiplying is increasing the number of things.

If you multi-task, your errors might multiply.

Sentence Patterns

I can multiply [number].

I can multiply five.

Multiply [number] by [number].

Multiply two by four.

The [noun] will multiply if [condition].

The problems will multiply if we don't act.

[Subject] multiplied [object].

The company multiplied its sales.

[Subject] is multiplied by [agent].

The risk is multiplied by the weather.

[Subject] multiplied [adverb].

The bacteria multiplied exponentially.

The [abstract noun] multiplies the [abstract noun].

The lack of sleep multiplies the stress.

Upon [action], the [noun] multiplied.

Upon investigation, the errors multiplied.

Word Family

Nouns

Verbs

Adjectives

How to Use It

frequency

Common in academic, scientific, and business English.

Common Mistakes

I have multiply friends. → I have multiple friends.
You used a verb where you needed an adjective. 'Multiple' describes the friends; 'multiply' is an action.
Multiply 5 with 5. → Multiply 5 by 5.
In English mathematics, the standard preposition for multiplication is 'by.'
The bacteria is multiplying. → The bacteria are multiplying.
'Bacteria' is actually the plural form of 'bacterium,' so it requires a plural verb.
His problems multiplied by two. → His problems doubled.
While 'multiplied by two' is mathematically correct, in natural English we usually say 'doubled' for abstract things.
The multiplication of the project was difficult. → The expansion of the project was difficult.
'Multiplication' is usually reserved for math or biology. For projects, 'expansion' or 'growth' is better.

Tips

Preposition Choice

Always use 'by' when performing math. 'Multiply 6 by 3' is the only way to say it correctly in a formal setting.

Word Choice

Use 'proliferate' if you want to sound more academic when describing things like cells or rumors spreading.

Natural Flow

When talking about population, 'multiply' sounds more natural than 'increase their numbers' in most contexts.

Avoid Repetition

If you have already used 'multiply' in a paragraph, try 'escalate' or 'mushroom' to keep your writing interesting.

The Zero Rule

Remember that multiplying any number by zero always results in zero. This is a common logic point in English riddles.

Cellular Context

In biology, 'multiply' and 'divide' can be confusing because cells 'divide' to 'multiply' their numbers.

Rabbit Idiom

Only use 'multiply like rabbits' in very informal situations, as it is a strong and slightly colorful metaphor.

The Y to I Rule

Don't forget to change the 'y' to 'i' when writing 'multiplied' or 'multiplies.' This is a common spelling test error.

Scaling

In modern business, 'multiply' is often replaced by 'scale,' but 'multiply' is still perfectly correct and clear.

Compounding

Think of multiplication as compounding. It's not just 1+1; it's the result of the previous step growing again.

Memorize It

Mnemonic

Think of 'MULTI' (many) and 'PLY' (like layers or folds). When you multiply, you are making 'many layers' of the same thing.

Visual Association

Imagine a single rabbit in a hat, and then suddenly the hat is overflowing with dozens of rabbits. This represents the rapid growth of 'multiply.'

Word Web

Math Growth Rabbits Numbers Bacteria Increase Factor Product

Challenge

Try to use the word 'multiply' in three different contexts today: once for math, once for nature, and once for an abstract idea like 'problems' or 'joy.'

Word Origin

The word 'multiply' comes from the Old French word 'multiplier,' which itself is derived from the Latin word 'multiplicare.'

Original meaning: In Latin, 'multiplicare' means 'to make many' or 'to increase.' It is a combination of 'multus' (many) and 'plicare' (to fold).

It belongs to the Indo-European language family, specifically the Italic branch.

Cultural Context

There are no major sensitivities, but be careful using 'multiply like rabbits' as it can sometimes be seen as slightly crude or insensitive when referring to human populations.

The word is very common in school curricula and business environments across the English-speaking world.

The biblical command 'Be fruitful and multiply'. The 'multiplication tables' that almost every English-speaking child learns in school. The concept of 'The Multiplier Effect' in economics.

Practice in Real Life

Real-World Contexts

Mathematics

multiply by
multiplication table
find the product
multiply the fractions

Biology

cells multiply
bacteria multiply
reproduce and multiply
multiply rapidly

Business

multiply profits
multiply the user base
multiplier effect
scale and multiply

Daily Life

problems multiply
risks multiply
multiply the joy
multiply like rabbits

Physics

multiply the force
amplify and multiply
multiply the signal
leverage to multiply

Conversation Starters

"Do you remember learning your multiplication tables in school?"

"How can we multiply our impact on the local community this year?"

"Do you think social media helps to multiply rumors or helpful information?"

"In your opinion, what is the best way to multiply your savings?"

"Have you ever seen a situation where a small problem multiplied into a big one?"

Journal Prompts

Describe a time when your efforts multiplied and you achieved more than you expected.

Write about a positive habit you want to multiply in your daily life.

How do you think technology will multiply human capabilities in the next fifty years?

Reflect on a situation where a misunderstanding multiplied into a larger conflict.

If you could multiply any one of your talents, which one would it be and why?

Frequently Asked Questions

10 questions

Increase is a general term for any growth. Multiply specifically implies a significant increase by a factor or through reproduction. For example, adding 1 to 10 is an increase, but multiplying 10 by 2 is a much larger change.

In mathematical contexts, 'multiply by' is the standard and correct preposition. 'Multiply with' is sometimes heard in casual speech but is considered non-standard in formal writing and math.

Yes, but be careful. In a biological sense, it means to have children. The idiom 'multiply like rabbits' can be seen as slightly offensive if used to describe a specific group of people.

A multiplier is a factor that increases the base value of something. For example, a 'marketing multiplier' might mean that for every dollar spent, you get five dollars in sales.

Yes, 'multiplied' can function as an adjective to describe something that has already been increased.

The noun form is 'multiplication.' Note the change from '-ply' to '-plication.'

It means to increase at an ever-accelerating rate. It is often used in science and finance to describe very fast growth.

Absolutely. It is very common to hear about 'multiplying problems,' 'multiplying debts,' or 'multiplying risks.'

In math, the opposite is 'divide.' In general growth, the opposite could be 'decrease,' 'diminish,' or 'dwindle.'

Yes, it follows regular conjugation rules: multiply, multiplies, multiplied, multiplying.