At the A1 level, 'maintain' is a bit advanced, but you can understand it as a more formal way to say 'keep' or 'look after'. Imagine you have a bicycle. To keep it working well, you need to clean it and put oil on the chain. This is 'maintaining' your bike. You can also think about 'maintaining' a level in a game—staying at level 10 without going down. It is about making sure something does not break or stop. At this level, focus on the physical objects: maintaining a car, maintaining a house, or maintaining a garden. It means you do small jobs regularly so that big problems do not happen later. It is a very useful word for talking about chores and responsibilities. Even though 'keep' is easier, using 'maintain' makes your English sound more grown-up and serious. Try to use it when you talk about things you take care of every day.
At the A2 level, you should start using 'maintain' to describe both physical care and keeping a situation the same. For example, you can maintain a car (physical) or maintain a friendship (social). Maintaining a friendship means you call your friend, talk to them, and meet them so that you stay friends. If you stop calling, you are not maintaining the friendship. You can also use it for health, like 'maintaining a healthy weight'. This means you eat well every day so your weight stays the same. The word 'maintain' shows that you are doing an action on purpose to get a result. It is not something that happens by accident. When you see this word, think of the phrase 'keep it going'. It is common in instructions, like 'Maintain a speed of 50 km/h'. This tells you not to go faster and not to go slower, but to stay exactly at 50.
At the B1 level, 'maintain' becomes an essential word for professional and academic contexts. You will use it to describe the upkeep of systems and the persistence of ideas. For instance, 'The company maintains a high standard of customer service.' This means the company works hard to ensure every customer is happy, every time. You will also encounter the meaning 'to claim that something is true'. For example, 'He maintains that he didn't see the sign.' This is more formal than 'he says'. It implies that he has said it before and continues to say it, even if people doubt him. At this level, you should also be aware of the noun form, 'maintenance', and notice that the spelling changes. You will use 'maintain' in more abstract ways, such as 'maintaining a balance between work and life'. This requires constant effort and adjustment, which is the core meaning of the word.
At the B2 level, you are expected to use 'maintain' with precision in various registers. You should understand its nuances compared to synonyms like 'sustain', 'preserve', and 'uphold'. For example, you 'uphold' a law, but you 'maintain' a building. You 'sustain' an effort, but you 'maintain' a pace. B2 learners should be comfortable using 'maintain' in the passive voice, which is very common in technical reports: 'The equipment is maintained on a monthly basis.' You should also be able to use the 'maintain that' structure to report opinions or arguments in essays. For instance, 'Many experts maintain that the current economic policy is unsustainable.' This shows a sophisticated grasp of how to attribute views to others. Furthermore, you can use 'maintain' to describe complex social dynamics, such as 'maintaining the status quo' or 'maintaining diplomatic relations', where the word carries significant political weight.
At the C1 level, 'maintain' is a tool for nuanced and sophisticated expression. You should be able to use it to describe the preservation of complex systems, the assertion of philosophical positions, and the management of subtle interpersonal dynamics. For example, in a literary analysis, you might discuss how a character 'maintains a facade of composure' despite internal turmoil. In a scientific context, you might describe how a biological system 'maintains homeostasis' through feedback loops. C1 learners should also recognize the use of 'maintain' in legal and formal debates, where it signifies a steadfast adherence to a claim in the face of contradictory evidence. You should be able to distinguish between 'maintaining a position' (staying firm) and 'maintaining a relationship' (nurturing it). The word's ability to bridge the gap between the mechanical and the rhetorical is something a C1 student can exploit to create more cohesive and professional texts.
At the C2 level, 'maintain' is used with complete mastery across all possible contexts. You understand its etymological roots (from the Latin 'manu tenere' - to hold in the hand) and how this sense of 'holding' or 'supporting' informs all its modern meanings. You can use it in highly specialized fields, such as 'maintaining the integrity of a database' or 'maintaining the liquidity of a market'. You are also sensitive to the rhetorical power of the word; choosing 'maintain' over 'claim' or 'argue' can subtly change the tone of a sentence to suggest a more enduring or foundational belief. At this level, you can use 'maintain' in complex grammatical structures, including conditional and subjunctive moods, to express hypothetical scenarios regarding the preservation of states or systems. Your use of the word is indistinguishable from that of a highly educated native speaker, showing a deep appreciation for its history, its collocations, and its varied semantic range.

maintain in 30 Seconds

  • Maintain is a verb that means to keep something in good working order through regular care and repair, like a car or a building.
  • It also describes the act of continuing a situation, level, or activity at the same pace or standard without letting it decline.
  • In formal contexts, maintain can mean to strongly assert or claim that something is true, even when others might disagree with you.
  • The word emphasizes consistency, responsibility, and the active effort needed to prevent change, deterioration, or the loss of a certain state.

The word maintain is a versatile verb that primarily functions in two major capacities: preservation and continuation. At its core, to maintain something is to ensure that it remains in its current state, whether that state is physical, like a car or a building, or abstract, like a relationship, a standard, or a belief. When we talk about physical maintenance, we are referring to the regular check-ups, repairs, and care required to prevent deterioration. For example, a homeowner must maintain their property to ensure its value does not decrease and that it remains safe to inhabit. This involves a proactive approach—fixing leaks before they become floods and painting walls before they peel. In a broader sense, maintaining a situation means keeping it going at the same level or pace. If an athlete wants to maintain their performance, they must continue training with the same intensity. If a company wants to maintain its market share, it must keep innovating to prevent competitors from taking over. The word suggests a constant effort; maintenance is rarely a one-time event but rather a continuous process of monitoring and adjusting.

Physical Upkeep
This refers to the act of keeping machinery, buildings, or equipment in good working order through regular service and repair. It is about preventing breakdown and wear.

The city council struggles to maintain the public parks during the winter months due to budget cuts.

Beyond the physical, maintain is frequently used in the context of communication and relationships. To maintain contact with someone is to continue communicating with them over time, despite distance or changes in life circumstances. This usage highlights the 'continuation' aspect of the word. Similarly, in a legal or formal context, one might maintain their innocence, which means they continue to state firmly that they are not guilty, even when faced with accusations. This nuance of the word moves away from 'repair' and toward 'assertion' and 'steadfastness'. It implies a position that is held firmly against opposition or the passage of time. In academic writing, you might see phrases like 'maintaining a balance' or 'maintaining a steady rate of growth', where the focus is on stability and the avoidance of fluctuation. The word is essential for describing any system—biological, mechanical, or social—that requires input to stay functional.

State of Affairs
This usage focuses on keeping a situation, feeling, or condition exactly as it is without allowing it to decline or change significantly.

It is difficult to maintain a positive attitude when everything seems to be going wrong.

In professional environments, 'maintain' is a high-frequency word. It appears in job descriptions (e.g., 'maintain accurate records'), in technical manuals (e.g., 'how to maintain your printer'), and in economic reports (e.g., 'the central bank aims to maintain price stability'). Its formal tone makes it suitable for official documentation, but it is common enough for everyday conversation. When a friend says they are 'maintaining' after a difficult event, they mean they are managing to keep their life together and functioning. This versatility makes it a cornerstone of the English language. Whether you are talking about the oil in your car, the level of noise in a library, or your stance on a political issue, 'maintain' provides the necessary linguistic tool to describe the effort of keeping things as they should be. It is a word of responsibility, consistency, and endurance.

Assertion of Truth
To maintain can also mean to express a firm belief or to claim that something is true, especially when others disagree.

Throughout the trial, the defendant continued to maintain that he was at home during the crime.

Using the word maintain correctly requires understanding its grammatical patterns and the contexts in which it thrives. As a transitive verb, it almost always takes a direct object—the thing that is being kept or continued. You maintain a car, maintain a relationship, or maintain a speed. One of the most common structures is [Subject] + [Maintain] + [Noun Phrase]. For example, 'The pilot struggled to maintain altitude.' Here, 'altitude' is the object being preserved. In more complex sentences, 'maintain' can be followed by a 'that' clause when it means to assert or claim something. For instance, 'Scientists maintain that global temperatures are rising.' In this case, the word functions similarly to 'argue' or 'claim', but with a sense of persistent belief.

Verb + Noun Collocations
Common objects for maintain include: standards, levels, records, relationships, equipment, health, and order.

To maintain a healthy lifestyle, one must exercise regularly and eat a balanced diet.

When using 'maintain' in different tenses, it follows the standard rules for regular verbs. In the present tense, it is 'maintain' or 'maintains' (for third-person singular). In the past tense and as a past participle, it becomes 'maintained'. The present participle is 'maintaining'. For example, 'The company is currently maintaining its lead in the tech industry.' It is also frequently used in the infinitive form to express purpose: 'We use software to maintain our database.' This 'to + maintain' structure is incredibly common in technical and professional writing where the goal of an action needs to be clearly defined. It answers the question 'Why are we doing this?' with 'To maintain [X]'.

Passive Voice Usage
'Maintain' is often used in the passive voice when the focus is on the object rather than the person doing the work. Example: 'The roads are well maintained by the local government.'

A high level of security must be maintained at all times within the airport terminal.

In academic and formal writing, 'maintain' helps to create a tone of objectivity and precision. Instead of saying 'He kept saying he was right,' a writer would say 'He maintained his position.' This shift in vocabulary elevates the register of the sentence. Furthermore, 'maintain' can be used with adverbs to specify the degree or manner of the action. You can 'carefully maintain', 'poorly maintain', or 'strictly maintain' something. These modifiers provide extra detail about the effort involved. For example, 'The ancient scrolls were meticulously maintained in a climate-controlled room.' Here, 'meticulously' emphasizes the extreme care taken. Understanding these patterns allows you to use 'maintain' not just as a basic verb, but as a precise tool for describing the preservation of everything from physical objects to abstract concepts.

The 'That' Clause
When 'maintain' means to claim or assert, it is followed by 'that' and a full sentence. Example: 'She maintains that the decision was made without her consent.'

Critics maintain that the new law will have negative consequences for small businesses.

The word maintain is ubiquitous in modern life, appearing in contexts ranging from the highly technical to the deeply personal. In the world of technology and infrastructure, you will hear it constantly. IT professionals talk about 'maintaining servers' to ensure websites don't crash. Civil engineers discuss 'maintaining bridges' to prevent structural failure. If you listen to news reports about the economy, you'll hear central bankers talk about 'maintaining interest rates' or 'maintaining inflation targets'. In these scenarios, the word conveys a sense of professional responsibility and the necessity of constant vigilance to keep complex systems running smoothly. It is a word of the 'background'—the work that happens so that everything else can function normally.

In the Workplace
You will see this word in performance reviews: 'Maintains a professional demeanor under pressure' or 'Maintains high standards of accuracy'.

The IT department will maintain the network over the weekend, so expect some downtime.

In the realm of health and fitness, 'maintain' is a key term. Doctors advise patients to 'maintain a healthy weight' or 'maintain a low-sodium diet'. Fitness influencers talk about 'maintaining muscle mass' while losing fat. Here, the word emphasizes the difficulty of staying at a certain level; it acknowledges that without effort, the body's condition will change. Similarly, in social and psychological contexts, people talk about 'maintaining boundaries' in relationships or 'maintaining focus' during a long task. In these cases, the word describes an internal effort of the will. You might hear a therapist say, 'It's important to maintain your sense of self in a partnership.' This usage highlights the word's application to the abstract and the emotional.

In Legal and News Media
Journalists use 'maintain' when reporting on claims: 'The company maintains that the product is safe despite recent complaints.'

Despite the evidence against him, he continued to maintain his innocence throughout the appeal process.

Finally, you'll encounter 'maintain' in environmental and scientific discussions. Conservationists work to 'maintain biodiversity' in endangered ecosystems. Scientists aim to 'maintain controlled conditions' in a laboratory to ensure experimental results are valid. In the context of climate change, there is much talk about 'maintaining global temperatures' below a certain threshold. In all these examples, 'maintain' is linked to the idea of sustainability and the prevention of irreversible change. Whether it's a car, a career, or the climate, the word 'maintain' serves as a reminder that nothing stays the same on its own; everything requires care, attention, and energy to persist in its desired state.

In Everyday Life
Commonly heard in phrases like 'maintain eye contact' during an interview or 'maintain your cool' during an argument.

It is important to maintain eye contact with the interviewer to show confidence and engagement.

While maintain is a common word, it is often misused or confused with similar verbs. One of the most frequent errors is using 'maintain' when 'repair' or 'fix' is more appropriate. Remember, maintenance is the *preventative* action taken to keep something in good condition, while repair is what you do *after* it has broken. If your car won't start, you don't 'maintain' it to get it going; you 'repair' it. However, you 'maintain' it by changing the oil regularly so that it doesn't break down in the first place. Confusing these two can lead to clarity issues in technical or professional communication.

Maintain vs. Keep
While often interchangeable, 'keep' is more general. 'Maintain' implies a level of effort, formality, or a systematic process that 'keep' does not always carry.

Incorrect: I need to maintain my broken window. (Use 'repair' instead). Correct: I maintain my windows by cleaning them every month.

Another common mistake involves the 'assertion' meaning of maintain. Learners sometimes use 'maintain' as a simple synonym for 'say' or 'tell'. However, 'maintain' carries a much stronger sense of persistence and defense of a position. You wouldn't 'maintain' that you like ice cream in a casual conversation; you would just say it. You 'maintain' a position when it is being challenged or when it is a serious matter of fact. Using 'maintain' for casual statements can make you sound unintentionally stiff or overly argumentative. It's important to match the weight of the word to the weight of the statement.

Maintain vs. Retain
'Retain' means to keep possession of something (like information or a physical object), while 'maintain' means to keep something in a certain state or to continue an action.

Incorrect: The soil maintains water well. (Use 'retains' for holding something in). Correct: The gardener maintains the moisture level in the soil.

Grammatically, a frequent error is the omission of the object. Since 'maintain' is transitive, it feels incomplete without a direct object. Saying 'He is maintaining' sounds wrong unless the context has already established what is being maintained. Always ensure the 'what' is clear. Additionally, be careful with the preposition 'of'. You don't 'maintain of' something; you just 'maintain' it. For example, 'maintain the car', not 'maintain of the car'. These small errors can distract the reader or listener from your message, so paying attention to the transitive nature of the verb is key to sounding natural and proficient.

Spelling Confusion
Note the spelling change in the noun form: 'maintenance'. Many people incorrectly spell it as 'maintainance'. There is no 'ai' in the middle of the noun.

Incorrect: The maintainance of the building is expensive. Correct: The maintenance of the building is expensive.

To truly master maintain, it is helpful to understand the words that surround it in the semantic web. Several synonyms offer slightly different shades of meaning, allowing for more precise expression. The most common alternative is keep. While 'keep' is simpler and more versatile, it lacks the implication of 'effort' that 'maintain' carries. If you 'keep' a secret, it's a passive act; if you 'maintain' a secret, it suggests there are active forces trying to uncover it. Another close synonym is preserve. 'Preserve' often implies keeping something in its original, pristine condition, often to protect it from decay or change, such as preserving a historical document or a forest. 'Maintain' is more about keeping something functional and operational in the present.

Maintain vs. Preserve
'Maintain' focuses on functionality and ongoing use (e.g., maintain a road). 'Preserve' focuses on saving something from change or destruction (e.g., preserve a tradition).

While we maintain the library building, we also strive to preserve the rare books inside.

In the context of continuing a situation, sustain is a powerful alternative. 'Sustain' often carries a connotation of providing the necessary resources for something to live or continue. You sustain life with food, or sustain an injury. In business, 'sustainable growth' is growth that can be maintained over the long term without depleting resources. Continue is the most basic synonym for this sense, but it lacks the nuance of 'keeping at a certain level'. If you 'continue' a journey, you just keep going; if you 'maintain' your speed on a journey, you are keeping a specific pace. For the 'assertion' meaning of maintain, synonyms include assert, claim, insist, and contend. 'Insist' suggests a more forceful or repetitive assertion, while 'contend' is often used in formal arguments or debates.

Maintain vs. Sustain
'Maintain' is the act of keeping something as it is. 'Sustain' is often the result of having enough support or energy to keep going.

The runner struggled to maintain his pace, but the cheers of the crowd helped sustain his energy.

On the opposite side, antonyms for 'maintain' include neglect, abandon, discontinue, and ignore. To neglect something is the direct opposite of maintaining it; it is to fail to give it the care it needs. To abandon a position is the opposite of maintaining it in an argument. Understanding these contrasts helps solidify the meaning of 'maintain' as a word of active care and persistent effort. By choosing the right word from this group, you can tailor your language to be more descriptive and accurate, whether you are writing a technical report, a persuasive essay, or a personal letter. The key is to look at the 'goal' of the action: is it to keep it working (maintain), keep it safe (preserve), keep it alive (sustain), or just keep it going (continue)?

Maintain vs. Assert
'Maintain' suggests a long-held or persistent belief. 'Assert' is a more general term for stating something confidently.

He asserted his authority during the meeting, but he has always maintained that he prefers a collaborative approach.

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

The noun form 'maintenance' used to have a legal meaning in the Middle Ages, referring to the illegal support of someone else's lawsuit. Today, it mostly refers to fixing things!

Pronunciation Guide

UK /meɪnˈteɪn/
US /meɪnˈteɪn/
The primary stress is on the second syllable: main-TAIN.
Rhymes With
contain obtain retain explain complain remain sustain abstain
Common Errors
  • Pronouncing it as 'MAN-tain' (stressing the first syllable).
  • Confusing the pronunciation with the noun 'maintenance' (MAIN-te-nance).
  • Dropping the 'n' at the end of the first syllable.
  • Making the 'ai' sound too short, like 'men-tain'.
  • Adding an extra syllable like 'main-tay-in'.

Difficulty Rating

Reading 2/5

The word is common in many texts, but its 'assertion' meaning can be slightly harder to spot than the 'upkeep' meaning.

Writing 3/5

Using it with 'that' clauses or in the passive voice requires some grammatical practice.

Speaking 2/5

It is a very useful word for professional and daily life conversations.

Listening 2/5

Easily recognizable, though it can be confused with 'maintenance' in fast speech.

What to Learn Next

Prerequisites

keep fix care same stay

Learn Next

sustain preserve uphold retain integrity

Advanced

homeostasis status quo meticulous dilapidated assertion

Grammar to Know

Transitive Verbs

Maintain requires an object: 'He maintains the car' (Correct), 'He maintains' (Incorrect).

Third Person Singular

Add 's' for he/she/it: 'She maintains a blog.'

Infinitive of Purpose

Use 'to maintain' to show why: 'I exercise to maintain my health.'

Passive Voice

The object becomes the subject: 'The roads are maintained by the city.'

That-Clauses

Used for assertions: 'They maintain that the world is flat.'

Examples by Level

1

I maintain my bicycle every week.

I clean and fix my bike.

Present simple tense for a regular habit.

2

He maintains his garden in the summer.

He takes care of his plants.

Third-person singular 's' added to the verb.

3

We need to maintain the house.

We need to keep the house in good condition.

Infinitive form after the modal verb 'need to'.

4

She maintains a clean room.

She keeps her room clean.

Maintain + adjective + noun.

5

Do you maintain your car?

Do you take care of your car?

Question form using 'do'.

6

They maintain the park for everyone.

They keep the park nice.

Subject + verb + object.

7

It is hard to maintain a tidy desk.

It is difficult to keep a desk clean.

It is + adjective + to-infinitive.

8

Please maintain a quiet voice.

Please keep your voice low.

Imperative form for a request.

1

The driver must maintain a steady speed.

The driver should not change speed.

Modal 'must' followed by base form.

2

She maintains a good relationship with her boss.

She stays friendly with her boss.

Maintaining an abstract noun (relationship).

3

You should maintain a healthy diet.

You should continue eating healthy food.

Advice using 'should'.

4

He maintained his weight by exercising.

His weight stayed the same because he worked out.

Past tense 'maintained'.

5

The school maintains high standards.

The school keeps its quality high.

Maintain + plural noun.

6

It is important to maintain contact with friends.

It is important to keep talking to friends.

Maintain contact (common collocation).

7

They are maintaining the old bridge.

They are repairing the bridge now.

Present continuous tense.

8

The hotel maintains a 24-hour reception.

The reception is always open.

Maintain meaning 'to provide continuously'.

1

The company maintains that the product is safe.

The company says firmly that it is safe.

Maintain + that clause (assertion).

2

We must maintain a balance between work and life.

We need to keep work and life equal.

Maintain a balance (abstract collocation).

3

The building is well maintained by the staff.

The staff takes good care of the building.

Passive voice construction.

4

She struggled to maintain her composure during the interview.

She tried hard to stay calm.

Maintain composure (fixed expression).

5

The software helps maintain accurate records.

The software keeps the data correct.

Maintain + adjective + noun.

6

He maintains a collection of rare stamps.

He keeps and looks after his stamps.

Maintain meaning 'to keep a collection'.

7

The government aims to maintain price stability.

The government wants to keep prices the same.

Economic context.

8

How do you maintain your motivation?

How do you keep yourself excited to work?

Question about an internal state.

1

The aircraft must maintain a minimum altitude.

The plane must stay above a certain height.

Technical/Aviation context.

2

Critics maintain that the policy will fail.

Critics argue strongly that it will fail.

Reporting a critical viewpoint.

3

It is vital to maintain the integrity of the data.

It is important to keep the data honest and correct.

Maintain the integrity (formal collocation).

4

The athlete maintained a grueling training schedule.

The athlete kept doing a very hard schedule.

Maintain a schedule (commitment).

5

The two countries have maintained diplomatic relations for decades.

The countries have stayed in contact officially.

Present perfect tense for a long-term state.

6

She maintained her silence throughout the meeting.

She did not speak at all during the meeting.

Maintain silence (deliberate action).

7

The system is designed to maintain a constant temperature.

The system keeps the heat the same.

Passive voice + infinitive.

8

He maintains a professional distance from his colleagues.

He does not get too personal with coworkers.

Social/Professional boundary.

1

The defendant maintained his innocence despite the evidence.

He kept saying he was not guilty.

Legal context: maintain innocence.

2

The philosopher maintains that morality is subjective.

The philosopher argues that right and wrong depend on the person.

Academic/Philosophical assertion.

3

The ecosystem struggles to maintain its delicate balance.

The nature system is having a hard time staying equal.

Environmental context.

4

She has maintained a high level of performance throughout her career.

She has always worked very well.

Present perfect + high level of performance.

5

The archive maintains a vast collection of historical documents.

The archive keeps many old papers.

Institutional usage.

6

It is difficult to maintain a facade of happiness when you are sad.

It is hard to pretend to be happy.

Maintain a facade (metaphorical).

7

The project was abandoned because it was too expensive to maintain.

They stopped the project because keeping it going cost too much.

Passive voice + infinitive of purpose.

8

The witness maintained her story under cross-examination.

She did not change her story when asked hard questions.

Maintain a story/position.

1

The central bank's primary mandate is to maintain price stability.

The bank's main job is to keep prices from changing too much.

Formal/Economic terminology.

2

The biological system maintains homeostasis through complex feedback loops.

The body keeps itself balanced using internal signals.

Scientific/Biological context.

3

He maintained a stoic indifference to the surrounding chaos.

He stayed calm and didn't care about the mess around him.

Literary/Advanced vocabulary.

4

The treaty was designed to maintain the geopolitical status quo.

The agreement was made to keep the world power balance the same.

Political/Diplomatic context.

5

The author maintains a rigorous level of detail throughout the novel.

The writer keeps the story very detailed from start to finish.

Critical/Literary analysis.

6

The software must maintain backward compatibility with older versions.

The new software must work with old files.

Technical/Software engineering.

7

She maintained her composure even when provoked by the media.

She stayed calm even when the news people were mean.

Maintain composure (advanced usage).

8

The organization maintains a global network of volunteers.

The group has and manages helpers all over the world.

Institutional/Organizational context.

Synonyms

keep up preserve sustain uphold continue care for

Antonyms

Common Collocations

maintain standards
maintain a relationship
maintain contact
maintain order
maintain equipment
maintain a level
maintain control
maintain a balance
maintain a lead
maintain records

Common Phrases

maintain eye contact

— To keep looking into someone's eyes while talking to them. It shows confidence and honesty.

You should maintain eye contact during a job interview.

maintain a low profile

— To avoid attracting attention to oneself. To stay quiet and out of the public eye.

After the scandal, the celebrity tried to maintain a low profile.

maintain the status quo

— To keep things exactly as they are now, without making any changes. Often used in politics.

The conservative party wants to maintain the status quo.

maintain your cool

— To stay calm and not get angry or upset in a difficult situation.

It was hard to maintain my cool when he started shouting at me.

well-maintained

— An adjective describing something that has been kept in very good condition.

They live in a beautiful, well-maintained house.

maintain a presence

— To continue to be visible or active in a certain place or field.

The company wants to maintain a presence in the European market.

maintain an interest

— To continue to be interested in something over a long period of time.

She has maintained an interest in photography since she was a child.

maintain a silence

— To continue not speaking, often for a specific reason or during a specific event.

The crowd maintained a respectful silence during the ceremony.

maintain a position

— To continue to hold a specific job, or to continue to believe a specific opinion.

He has maintained his position as CEO for ten years.

maintain a lifestyle

— To continue living in a certain way, often referring to how much money you spend.

It is expensive to maintain a luxury lifestyle in the city.

Often Confused With

maintain vs repair

Repair is fixing something that is broken. Maintain is taking care of something so it doesn't break.

maintain vs retain

Retain means to keep something in your possession. Maintain means to keep something in a certain state.

maintain vs obtain

Obtain means to get something. Maintain means to keep it after you have it.

Idioms & Expressions

"maintain a stiff upper lip"

— To stay brave and not show your feelings (especially sadness or fear) during a difficult time.

Even after losing the game, the captain maintained a stiff upper lip.

informal/traditional
"maintain the rage"

— To keep up one's enthusiasm or anger about a political or social issue over a long period.

The activists were told to maintain the rage until the law was changed.

political/informal
"maintain a front"

— To pretend to be something you are not, or to hide your true feelings from others.

He maintained a front of confidence, but he was actually very nervous.

neutral
"maintain a distance"

— To avoid becoming too friendly or involved with someone.

She preferred to maintain a distance from her neighbors.

neutral
"maintain one's ground"

— To refuse to change your opinion or to move from your position when someone is attacking you.

Despite the pressure, the lawyer maintained his ground.

neutral
"maintain a watch"

— To keep looking at something carefully to make sure nothing bad happens.

The guards maintained a watch over the entrance all night.

formal
"maintain the pace"

— To keep going at the same speed as others or as you were before.

The small company struggled to maintain the pace of the larger competitors.

neutral
"maintain a balance"

— To give equal importance to two different things so that neither becomes too dominant.

A good teacher maintains a balance between discipline and fun.

neutral
"maintain a standard"

— To ensure that the quality of something does not fall below a certain level.

We must maintain a standard of excellence in our work.

professional
"maintain a grip"

— To keep control over a situation or to keep holding something tightly.

The government is trying to maintain a grip on inflation.

neutral

Easily Confused

maintain vs Maintenance

It is the noun form of maintain.

Maintain is the action (verb), while maintenance is the name of the process (noun). Also, the spelling is different ('ai' vs 'e').

I maintain my car (verb). The maintenance of my car is expensive (noun).

maintain vs Sustain

Both mean to keep something going.

Maintain is about keeping a state or condition. Sustain is about providing the energy or support needed for something to continue existing.

I maintain my speed. The food sustained the hikers for three days.

maintain vs Preserve

Both involve keeping something.

Preserve means to keep something exactly as it was, often to protect it from time. Maintain means to keep it working or functional in the present.

We preserve the museum's art. We maintain the museum's air conditioning.

maintain vs Uphold

Both mean to support something.

Uphold is used for abstract things like laws, traditions, or values. Maintain is used for physical objects or general situations.

The police uphold the law. The janitor maintains the building.

maintain vs Keep

They are often synonyms.

Keep is a very general word. Maintain is more specific and implies a regular, active effort to prevent a drop in quality.

Keep the change. Maintain the high quality of our products.

Sentence Patterns

A1

I maintain my [noun].

I maintain my bike.

A2

It is important to maintain [noun].

It is important to maintain a healthy diet.

B1

[Subject] maintains that [clause].

He maintains that he is innocent.

B1

[Noun] is well maintained.

The garden is well maintained.

B2

[Subject] struggled to maintain [noun].

She struggled to maintain her composure.

B2

Maintain a balance between [A] and [B].

Maintain a balance between work and play.

C1

Despite [X], [Subject] maintained [noun].

Despite the noise, he maintained his focus.

C2

[Subject] maintains a [adjective] [noun] throughout [Y].

The author maintains a rigorous level of detail throughout the book.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

Very common in both spoken and written English, especially in technical, medical, and professional fields.

Common Mistakes
  • I need to maintain my broken car. I need to repair my broken car.

    Maintenance is for keeping things good; repair is for fixing things that are bad.

  • The building needs good maintainance. The building needs good maintenance.

    The noun is spelled with an 'e', not 'ai'.

  • He maintains of his garden every day. He maintains his garden every day.

    Do not use the preposition 'of' after maintain. It takes a direct object.

  • I maintain that I like pizza. I really like pizza.

    'Maintain that' is for serious claims or arguments, not casual preferences.

  • The soil maintains water. The soil retains water.

    'Retain' means to hold something inside; 'maintain' means to keep a state.

Tips

Always use an object

Remember that 'maintain' is a transitive verb. You must maintain *something*. Don't just say 'He is maintaining'; say 'He is maintaining the garden'.

The Noun Change

Watch out for the spelling of 'maintenance'. The 'ai' in the verb becomes an 'e' in the noun. This is one of the most frequent spelling errors in English.

Formal vs. Informal

Use 'maintain' in your essays and work emails to sound more professional. Use 'keep' when talking to friends or family about simple things.

Stress the Second Syllable

Always put the emphasis on 'TAIN'. Say 'main-TAIN'. This helps people understand you clearly, especially in noisy environments.

Maintain vs. Repair

Use 'maintain' for things that are still working but need care. Use 'repair' for things that are already broken and need to be fixed.

Maintain Contact

This is a great phrase to use in networking. Instead of 'stay in touch', you can say 'I look forward to maintaining contact with you'.

Using 'That' Clauses

When you want to report a strong opinion, use 'maintain that'. It sounds more authoritative than 'say that' or 'think that'.

Maintain Eye Contact

This is a very common idiom. Use it when talking about body language or giving advice for interviews and public speaking.

Maintain a Balance

This is a key phrase for academic and lifestyle writing. It describes the effort to keep two opposing forces equal.

Maintain Standards

In a business context, always talk about 'maintaining high standards'. It shows you care about quality and consistency.

Memorize It

Mnemonic

Think of a 'Main' road that you need to 'tain' (keep) clean. Or imagine 'Main'taining a 'Train'—you have to keep it on the tracks and keep it moving.

Visual Association

Imagine a hand (manu) holding (tenere) a small, spinning plate. You have to keep moving your hand to 'maintain' the spin and keep the plate from falling.

Word Web

Car House Relationship Health Standards Records Speed Innocence

Challenge

Try to use 'maintain' in three different ways today: once for an object (like your phone), once for a habit (like studying), and once for a feeling (like staying calm).

Word Origin

The word 'maintain' comes from the Old French word 'maintenir', which was derived from the Latin phrase 'manu tenere'. This literally means 'to hold in the hand'. The 'manu' part comes from 'manus' (hand) and 'tenere' means 'to hold'.

Original meaning: Originally, it meant to support or to hold up physically with one's hands.

Romance (Latin) roots, entering English through Norman French.

Cultural Context

Be careful when calling a person 'high-maintenance' as it can be seen as an insult, implying they are demanding or difficult.

In the US and UK, 'maintenance' is often associated with home ownership and the 'DIY' (Do It Yourself) culture of fixing things.

The book 'Zen and the Art of Motorcycle Maintenance' by Robert M. Pirsig explores the philosophy of quality through the act of maintaining a machine. In aviation, 'Maintenance, Repair, and Overhaul' (MRO) is a massive global industry. The phrase 'maintain the status quo' is a staple of political commentary in English-speaking media.

Practice in Real Life

Real-World Contexts

Automotive

  • maintain the engine
  • maintenance schedule
  • well-maintained vehicle
  • cost of maintenance

Health and Fitness

  • maintain a healthy weight
  • maintain muscle mass
  • maintain a balanced diet
  • maintain physical fitness

Professional/Work

  • maintain high standards
  • maintain accurate records
  • maintain professional relationships
  • maintain a database

Social/Relationships

  • maintain contact
  • maintain a friendship
  • maintain boundaries
  • maintain a conversation

Legal/Argumentative

  • maintain innocence
  • maintain a position
  • maintain that something is true
  • maintain a claim

Conversation Starters

"How do you maintain a good work-life balance in such a busy world?"

"Do you think it's harder to maintain a friendship or to start a new one?"

"What is the most difficult thing you have ever had to maintain, like a car or a garden?"

"How does your company maintain high standards of quality for its customers?"

"Do you find it easy to maintain your focus when you are working from home?"

Journal Prompts

Write about a habit you are trying to maintain and why it is important to you.

Describe a time when you had to maintain your composure in a very stressful situation.

What are the three most important things you do to maintain your physical and mental health?

Think of a relationship you have maintained for a long time. What is the secret to its longevity?

If you had to maintain a historic building, which one would you choose and what would you do?

Frequently Asked Questions

10 questions

Maintain is a regular verb. Its past tense and past participle are both 'maintained', and the present participle is 'maintaining'. For example, 'I maintained the car yesterday' and 'I am maintaining it now'.

'Keep' is a general word that can be used in almost any situation. 'Maintain' is more formal and usually implies that you are doing work or putting in effort to keep something in a specific, good condition. You keep a secret, but you maintain a car.

The noun form is 'maintenance'. Be careful, as the 'ai' in 'maintain' changes to an 'e' in 'maintenance'. It is a very common spelling mistake to write 'maintainance'.

Yes, but usually in a professional or formal way. You can 'maintain a relationship' or 'maintain contact'. If you call a person 'high-maintenance', it means they need a lot of attention or money to be happy.

In formal contexts, yes. If you 'maintain that something is true', it means you are stating it firmly and you continue to say it even if others disagree. For example, 'He maintains his innocence'.

Common objects include cars, houses, gardens, and machines. Common abstract things include health, relationships, standards, levels, and records.

It is usually written with a hyphen when it comes before a noun, like 'a well-maintained house'. If it comes after the verb, you don't need the hyphen: 'The house is well maintained'.

This is a technical term for doing small repairs and checks on a machine *before* it breaks, to prevent big problems later. It is the most common way 'maintain' is used in business.

Yes, and it is very common. 'The building is maintained by a professional company.' This focuses on the building rather than the people doing the work.

The most direct opposite is 'neglect', which means to fail to take care of something. Other opposites include 'abandon', 'discontinue', or 'ignore'.

Test Yourself 180 questions

writing

Write a sentence about maintaining a car.

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writing

Write a sentence about maintaining a friendship.

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writing

Use 'maintain that' in a sentence about an opinion.

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writing

Write a sentence using 'well-maintained'.

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writing

Describe how you maintain your health.

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writing

Write a sentence about maintaining a standard.

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writing

Use 'maintain composure' in a sentence.

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writing

Write a sentence about maintaining a garden.

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writing

Write a sentence about maintaining a balance.

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writing

Use 'maintain contact' in a sentence.

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writing

Write a sentence about maintaining a speed.

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writing

Write a sentence about maintaining a record.

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writing

Use 'maintain innocence' in a sentence.

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writing

Write a sentence about maintaining a house.

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writing

Write a sentence about maintaining focus.

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writing

Use 'maintain a presence' in a sentence.

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writing

Write a sentence about maintaining a tradition.

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writing

Write a sentence about maintaining a level of quality.

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writing

Use 'maintain eye contact' in a sentence.

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writing

Write a sentence about maintaining a database.

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speaking

Describe one thing you maintain every day.

Read this aloud:

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speaking

How do you maintain a good relationship with your family?

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speaking

Why is it important to maintain a car?

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speaking

What is the hardest thing for you to maintain?

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speaking

How do you maintain your composure when you are angry?

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speaking

Do you think it's important to maintain traditions?

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speaking

How can a company maintain high standards?

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speaking

What do you do to maintain your English skills?

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speaking

How do you maintain a balance between work and fun?

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speaking

Why do people maintain collections of things?

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speaking

How do you maintain contact with old friends?

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speaking

What does 'maintaining a low profile' mean to you?

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speaking

How do you maintain your garden or house?

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speaking

Why is maintaining eye contact important in your culture?

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speaking

How do you maintain focus during a long meeting?

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speaking

What are the benefits of a well-maintained city?

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speaking

How do you maintain your motivation for long-term goals?

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speaking

Is it expensive to maintain a healthy lifestyle?

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speaking

How do you maintain your computer's performance?

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speaking

Why is it important to maintain professional boundaries at work?

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listening

Listen to the sentence: 'She maintains a blog about travel.' What is she doing?

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listening

Listen to the sentence: 'The engine needs to be maintained.' Is the engine broken?

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listening

Listen to the sentence: 'He maintained a steady pace.' Did his speed change?

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listening

Listen to the sentence: 'The witness maintained her story.' Did she change what she said?

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listening

Listen to the sentence: 'Maintain a distance of two meters.' How far should you stay?

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listening

Listen to the sentence: 'The house is well-maintained.' Does it look old and dirty?

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listening

Listen to the sentence: 'We must maintain the status quo.' Do we want change?

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listening

Listen to the sentence: 'Maintain eye contact with the speaker.' Where should you look?

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listening

Listen to the sentence: 'The company maintains high standards.' Is the quality good?

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listening

Listen to the sentence: 'He struggled to maintain his composure.' Was he calm?

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listening

Listen to the sentence: 'The park is maintained by volunteers.' Who cleans the park?

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listening

Listen to the sentence: 'Maintain your focus on the road.' What should you look at?

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listening

Listen to the sentence: 'The software maintains accurate records.' Is the data correct?

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listening

Listen to the sentence: 'They maintain a friendly relationship.' Are they enemies?

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listening

Listen to the sentence: 'It's hard to maintain a secret.' Is it easy to keep a secret?

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Perfect score!

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