Explanation at your level:
To cooperate means to help someone. If you have a toy and your friend has a toy, you can play together. That is cooperating! You work as a team to have fun or finish a task. You are not working alone; you are working with others. It makes things easier for everyone.
When you cooperate, you work with other people to reach a goal. For example, if you are in a group project at school, you share your ideas and help your partners. It is important to listen to others so you can cooperate well. It helps you finish your work faster and better.
Cooperate is used when people or groups agree to work together. It implies that everyone involved is willing to help. You might cooperate with your colleagues to solve a difficult problem at work. It is a very positive word that shows you are a good team player. It is often used in formal situations, such as 'The two companies agreed to cooperate on the project.'
In a B2 context, 'cooperate' often relates to professional or legal settings. You might hear about countries that 'cooperate' to fight climate change or police forces that 'cooperate' to solve crimes. The nuance here is that cooperation requires a conscious effort to align different interests. It is more than just helping; it is a strategic partnership.
At the C1 level, 'cooperate' can be used to describe complex systemic interactions. For instance, 'The immune system must cooperate with various biological signals to maintain health.' It implies a sophisticated level of coordination. Furthermore, it can be used in a slightly ironic sense, such as when a stubborn machine finally 'cooperates' after you have been trying to fix it for hours.
At the C2 level, we look at the etymological depth of 'cooperate.' It is the fundamental social contract of human civilization. Without the ability to cooperate, complex societies could not exist. In literary or academic discourse, the word can be used to discuss the 'cooperation' between various artistic movements or the 'cooperation' of disparate philosophical ideologies. It is a word that underscores the very nature of human progress and collective existence.
Word in 30 Seconds
- Cooperate means to work together.
- It is a regular verb.
- Always use 'with' after it.
- It is essential for teamwork.
When you cooperate, you are essentially choosing to be a team player. It is the act of working alongside others, whether that is in a classroom, a workplace, or even just playing a game with friends.
The core of this word is mutual benefit. By pooling resources, ideas, or physical effort, people can accomplish things that would be impossible to do alone. It implies a sense of harmony and a willingness to compromise for the greater good.
The word cooperate comes from the Latin word cooperari, which is a combination of co- (meaning 'together') and operari (meaning 'to work'). This is the same root that gives us the word 'operate'.
Historically, it moved through Middle French before entering the English language in the 16th century. It has always carried the sense of 'working in concert with,' highlighting that humans have long understood that collective effort is a fundamental key to survival and progress.
You will see cooperate used in many different settings. In a formal business setting, you might hear, 'We need to cooperate with the new marketing team.' In a casual sense, you might say, 'If we cooperate, we can finish this puzzle in ten minutes.'
It is often followed by the preposition with. You cooperate with a person, an organization, or an authority. It is a very versatile word that works well in almost any professional or social register.
While 'cooperate' is a direct verb, we often use idioms to describe the act of working together. 1. Join forces: To unite efforts. 2. Pull together: To work as a team. 3. Get on the same page: To agree on a plan. 4. In cahoots: Usually implies secret cooperation (often negative). 5. Team up: To partner with someone.
The word is a regular verb. Its forms are: cooperate (base), cooperates (third-person singular), cooperated (past tense), and cooperating (present participle).
Pronunciation varies slightly between US and UK English. In the US, it is /koʊˈɑːpəreɪt/, while in the UK it is often /koʊˈɒpəreɪt/. The stress is on the second syllable. It rhymes with 'operate' and 'incorporate'.
Fun Fact
It shares the same root as 'opus', which means 'a work' in Latin.
Pronunciation Guide
Sounds like 'co-OP-er-ate'.
Sounds like 'co-AH-per-ate'.
Common Errors
- Misplacing the stress on the first syllable
- Pronouncing it like 'corporate'
- Ignoring the 'er' sound
Rhymes With
Difficulty Rating
Easy to read
Easy to write
Easy to say
Easy to hear
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Verb + Preposition
Cooperate with
Infinitive Verbs
Agree to cooperate
Modal Verbs
Must cooperate
Examples by Level
We cooperate on the project.
We work together.
Verb usage.
Please cooperate with me.
Please help me.
Imperative.
They cooperate every day.
They work together daily.
Present simple.
I want to cooperate.
I want to help.
Infinitive.
Can we cooperate?
Can we work together?
Question form.
They cooperate well.
They work well together.
Adverb usage.
We did not cooperate.
We did not work together.
Past negative.
Let us cooperate.
Let's work together.
Suggestion.
We must cooperate to win the game.
The students cooperate in the classroom.
Can you cooperate with the new rules?
They decided to cooperate on the task.
We cooperate with our neighbors.
The team failed to cooperate.
It is easy to cooperate with her.
They are learning to cooperate.
The police asked the witness to cooperate.
The two companies will cooperate on this venture.
We need to cooperate if we want to succeed.
He refused to cooperate with the investigation.
They have always cooperated with the staff.
Cooperate with your team to finish early.
The software does not cooperate with my computer.
We are looking for ways to cooperate more.
The nations agreed to cooperate on environmental issues.
She found it difficult to cooperate with the new management.
The success of the mission depends on how well we cooperate.
The witness was willing to cooperate fully with the authorities.
Without the ability to cooperate, the project would have failed.
They are cooperating to develop a new vaccine.
He was accused of failing to cooperate with the audit.
We need to foster a spirit of cooperation.
The various departments must cooperate to streamline the process.
The patient's body failed to cooperate with the treatment.
They are forced to cooperate due to the limited resources.
The two factions finally agreed to cooperate for the sake of peace.
Her stubborn hair simply refused to cooperate today.
The government is cooperating with international agencies.
It is essential that all parties cooperate during the transition.
The project requires us to cooperate across different time zones.
The organic evolution of the system relies on the cells to cooperate.
He was a man who refused to cooperate with the oppressive regime.
The symphony requires every musician to cooperate with the conductor.
Their interests were too disparate to ever truly cooperate.
The delicate ecosystem depends on the species to cooperate for survival.
She had to cooperate with the inevitable changes.
The mechanism failed to cooperate, leading to a system crash.
To cooperate is to recognize the value of the collective.
Synonyms
Antonyms
Common Collocations
Idioms & Expressions
"in cahoots"
working together secretly
They were in cahoots to steal the cookies.
casual"join forces"
to combine efforts
Let's join forces to clean the park.
neutral"on the same page"
to have a shared understanding
We need to be on the same page.
neutral"pull together"
to work as a team during a crisis
We need to pull together to finish.
neutral"team up"
to form a partnership
I will team up with Sarah.
casual"sing from the same hymn sheet"
to express the same opinion
The board needs to sing from the same hymn sheet.
formalEasily Confused
Both mean working together
Collaborate is for creative/intellectual work; cooperate is for general help.
We collaborate on art; we cooperate to clean the house.
Similar sound
Coordinate means to organize parts; cooperate means to work with others.
I coordinate the event, and we cooperate with the staff.
Similar spelling
Corporate is about business structures.
The corporate office is in the city.
Part of the word
Operate means to run a machine.
I know how to operate this machine.
Sentence Patterns
Subject + cooperate + with + person
I will cooperate with the team.
Subject + agree + to + cooperate
They agreed to cooperate.
Subject + refuse + to + cooperate
He refused to cooperate.
Subject + cooperate + on + task
We cooperate on the project.
Subject + must + cooperate + to + goal
We must cooperate to succeed.
Word Family
Nouns
Verbs
Adjectives
Related
How to Use It
8/10
Formality Scale
Common Mistakes
While the hyphen is technically acceptable, it is increasingly rare in modern English.
The correct preposition is 'with'.
It is an intransitive verb requiring a preposition.
Use an infinitive phrase for the purpose.
Again, missing the preposition 'with'.
Tips
Memory Palace Trick
Visualize a 'CO-OP' grocery store where everyone is helping each other stock shelves.
When Native Speakers Use It
Used when describing team success or legal requirements.
Cultural Insight
In US schools, 'cooperative learning' is a key teaching method.
Grammar Shortcut
Always remember 'cooperate WITH' someone.
Say It Right
Focus on the 'er' sound in the middle.
Don't Make This Mistake
Do not say 'cooperate to' someone.
Did You Know?
It shares a root with 'operate'!
Study Smart
Use it in a sentence about your own life.
Stress Check
Stress the second syllable: co-OP-erate.
Context Tip
Use it when you want to sound professional.
Memorize It
Mnemonic
CO (together) + OPERATE (work) = Work Together.
Visual Association
A group of people holding hands around a large project.
Word Web
Challenge
Ask a friend to cooperate with you on a small task today.
Word Origin
Latin
Original meaning: to work together
Cultural Context
None, generally considered a positive, professional trait.
Highly valued in Western corporate and educational cultures.
Practice in Real Life
Real-World Contexts
at work
- cooperate with colleagues
- cooperate on a project
- cooperate with management
at school
- cooperate with classmates
- cooperate on homework
- cooperate with teachers
with police
- cooperate with the investigation
- cooperate with authorities
- refuse to cooperate
in sports
- cooperate with teammates
- cooperate on the field
- cooperate for the win
Conversation Starters
"How do you cooperate with your team at work?"
"Why is it sometimes hard to cooperate?"
"Can you give an example of a time you had to cooperate?"
"Do you think it is easier to work alone or cooperate?"
"What happens when people refuse to cooperate?"
Journal Prompts
Write about a time you had to cooperate to solve a problem.
Describe a person you know who is very cooperative.
Why do you think cooperation is important in a society?
If you could cooperate with anyone in the world, who would it be?
Frequently Asked Questions
8 questionsNo, it is a verb. The noun is cooperation.
C-O-O-P-E-R-A-T-E.
No, it is usually written as one word.
Cooperated.
Yes, often in a figurative way.
It can be used in both formal and informal settings.
Cooperation.
Yes, non-cooperation.
Test Yourself
We should ___ to finish the puzzle.
Cooperate means to work together.
Which word means to work with others?
Cooperate is the synonym for working together.
You cooperate with someone.
The preposition 'with' is correct.
Word
Meaning
These are antonyms.
Subject + modal + verb + adverb.
The suspect refused to ___ with the police.
Cooperate is the standard collocation with authorities.
Which is an antonym?
Obstruct prevents cooperation.
Cooperate is a noun.
It is a verb.
Word
Meaning
Word family classification.
Correct structure for a technical statement.
Score: /10
Summary
Cooperating is the act of working with others to reach a goal that benefits everyone.
- Cooperate means to work together.
- It is a regular verb.
- Always use 'with' after it.
- It is essential for teamwork.
Memory Palace Trick
Visualize a 'CO-OP' grocery store where everyone is helping each other stock shelves.
When Native Speakers Use It
Used when describing team success or legal requirements.
Cultural Insight
In US schools, 'cooperative learning' is a key teaching method.
Grammar Shortcut
Always remember 'cooperate WITH' someone.
Example
If you cooperate with your brother, we can finish cleaning the playroom much faster.
Related Content
This Word in Other Languages
More Work words
abformize
C1To structure or give a specific, standardized form to an object, idea, or process, often based on a pre-existing model or mold. It is frequently used in technical or theoretical contexts to describe the transition from an amorphous state to a defined configuration.
abmissery
C1To formally discharge or release an individual from a specific duty, mission, or administrative post, typically due to a failure to meet requirements or an organizational change. It implies a structured removal from a position of responsibility before the natural conclusion of a term.
abregship
C1To systematically condense, streamline, or narrow the scope of duties and authorities inherent in a formal leadership position or institutional office. This verb is typically used in the context of organizational restructuring to describe the reduction of a role's breadth to increase efficiency.
absigntude
C1To formally and publicly relinquish a position of authority or a professional responsibility, specifically as an act of moral or ethical protest. This verb implies that the departure is accompanied by a documented statement of principles or a refusal to comply with compromised standards.
accomplishment
B2An accomplishment is something that has been achieved successfully, especially through hard work, skill, or perseverance. It refers both to the act of finishing a task and the successful result itself.
achievement
C1A thing done successfully, typically by effort, courage, or skill. In an academic or professional context, it refers to the act of reaching a specific level of performance or completing a significant milestone.
adantiary
C1To strategically adjust or modify an existing plan, process, or structure in anticipation of specific future obstacles or changes. This verb describes the proactive act of refining a strategy before a problem actually occurs.
adept
C1Highly skilled or proficient at a task that requires specific knowledge or practice. It describes a person who can perform complex actions with ease and precision.
adflexship
C1To strategically and dynamically adapt one's professional approach or methodology by flexibly integrating new skills or environmental shifts. It describes the active process of mastering situational changes to maintain a competitive or functional advantage.
adhument
C1To provide support, assistance, or reinforcement to a person, organization, or project. It specifically refers to the act of strengthening an existing foundation or effort through additional resources or effort.
