collaborate

verb

col·​lab·​o·​rate kə-ˈla-bə-ˌrāt 

collaborated; collaborating

intransitive verb

1

: to work jointly with others or together especially in an intellectual endeavor

An international team of scientists collaborated on the study.

… most jobs today require some level of extra effort to collaborate with coworkers …

—Jim Harter

2

: to cooperate with or willingly assist an enemy of one's country and especially an occupying force

suspected of collaborating with the occupying army

3

: to cooperate with an agency or instrumentality with which one is not immediately connected

… other nonprofit research institutions routinely collaborate with for-profit companies on research.

—Lawrence O. Gostin

The two schools collaborate on library services.

collaboration

kə-ˌla-bə-ˈrā-shən 

noun

collaborative

kə-ˈla-bə-ˌrā-tiv, 

-b(ə-)rə- 

adjective or noun

collaboratively

kə-ˈla-bə-ˌrā-tiv-lē 

-b(ə-)rə-

adverb

Did you know?

The Latin prefix com-, meaning "with, together, or jointly," is a bit of a chameleon—it has a habit of changing its appearance depending on what it's next to. For example, if the word it precedes begins with l, com- becomes col-. In the case of collaborate, com- teamed up with the verb laborare ("to labor") to form the Late Latin word collaborare ("to labor together"). Be careful not to confuse collaborate with corroborate, another com- relative. This word was formed when com- (this time shape-shifting to cor-) joined forces with the Latin word robur ("strength"). Together, by way of the Latin verb corroborare, they created the meaning "to support or help prove (a statement, theory, etc.) by providing information or evidence," which carried over into the English word corroborate.

Synonyms of collaborate

• cooperate
• unite

Examples of collaborate in a Sentence

The two companies agreed to collaborate.

He was suspected of collaborating with the occupying army.

Recent Examples on the Web

For the commemorative jewelry, Kloots collaborated with Eterneva, a company that grows diamonds in its lab using an individualized method that pressurizes the ashes (or hair) of a deceased loved one. —Kathleen Perricone, Entertainment Weekly, 18 June 2026

Other laws in the package limit how Philadelphia police can collaborate with Immigration and Customs Enforcement, restrict how the city can collect and use information related to immigration status and strengthen protections against discrimination. —Laura Fay, CBS News, 18 June 2026

Second, global regulators must urgently collaborate with technology leaders to build validation practices for the AI auditing tools themselves. —Sean Stein Smith, Forbes.com, 18 June 2026

Smith also collaborated with other heavy hitters of the folk-pop genre in building out the 15-track project. —ABC News, 18 June 2026

Word History

Etymology

Late Latin collaboratus, past participle of collaborare to labor together, from Latin com- + laborare to labor — more at labor

First Known Use

1837, in the meaning defined at sense 1

Rhymes for collaborate

• abbreviate
• accelerate
• accommodate
• accumulate
• acuminate
• adjudicate
• adulterate
• affiliate
• agglomerate
• agglutinate
• alleviate
• amalgamate

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Kids Definition

collaborate

verb

col·​lab·​o·​rate kə-ˈlab-ə-ˌrāt 

collaborated; collaborating

1

: to work with others (as in writing a book)

2

: to cooperate with an enemy force that has taken over one's country

collaboration

kə-ˌlab-ə-ˈrā-shən 

noun

collaborationist

-sh(ə-)nəst

noun

collaborator

kə-ˈlab-ə-ˌrāt-ər 

noun

Legal Definition

collaborate

intransitive verb

col·​lab·​o·​rate kə-ˈla-bə-ˌrāt 

collaborated; collaborating

: to work jointly with others in some endeavor