English Reference

Word

cooperative

Phoneticsco·op·er·a·tive, stress on the second syllable

US/koʊˈɑpɝˌeɪtɪv/

UK/kəʊˈɒpəɹətˌɪv/

Definitions

01helpful and willing

B1 · Intermediate

adj. willing to help or work with others to achieve a goal.

adj. willing to assist or work jointly with others toward a common purpose.

“The witness was very cooperative and answered all the police officer's questions.”

“The suspect remained surprisingly cooperative throughout the interrogation, providing detailed accounts that corroborated the physical evidence found at the scene.”

02done together

B2 · Upper Intermediate

adj. involving two or more people or groups working together.

adj. characterised by joint effort or mutual collaboration between parties.

“The two schools started a cooperative project to improve the local park.”

“The successful launch was the result of a cooperative effort between international space agencies and private engineering firms.”

03member-owned business

C1 · Advanced Countable noun Formal

n. a business or organisation owned and run by the people who work there or use its services.

n. an autonomous association of persons united voluntarily to meet common economic or social needs through a jointly-owned enterprise.

“We buy our vegetables from a local farming cooperative that supports small growers.”

“The housing cooperative allows residents to have a direct say in how their building is managed and maintained.”

Usage

Often shortened to 'co-op' in everyday speech.

Teaching tip

While 'cooperative' is the formal name, students will more frequently encounter the abbreviation 'co-op' in retail or housing contexts.

Synonyms

co-opcollective

Collocations

Common phrases and expressions where native English speakers use the word “cooperative” in context.

Verb

01. prove cooperative

“The local authorities proved cooperative in providing the necessary permits for the festival.”

verb + adj

02. remain cooperative

“Despite the difficult negotiations, both parties managed to remain cooperative throughout the week.”

verb + adj

Adjective

03. cooperative effort

“The success of the project was the result of a cooperative effort between both departments.”

adj + noun

04. cooperative venture

“The two tech giants launched a cooperative venture to develop sustainable energy solutions.”

adj + noun

05. remarkably cooperative

“The witness was remarkably cooperative during the initial police interview.”

adv + adj

Noun

06. agricultural cooperative

“The small-scale farmers joined an agricultural cooperative to get better prices for their crops.”

noun + noun

07. housing cooperative

“She lives in a housing cooperative where all residents share the maintenance costs.”

noun + noun

Real-World Examples

“That shifts attention toward other characteristics that may have helped ants, bees and wasps repeatedly evolve highly cooperative colonies.”
ScienceDaily 15 Aug 2026
“As the young wolves grow, some stay with the pack for one to two years and serve in the cooperative family unit.”
Smithsonian Magazine 31 Jul 2026

Etymology

From co- + operative.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

cooperative(C1)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Frequent
Level
C1 · AdvancedOxford
Updated

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English Reference