collaborator

noun

col·​lab·​o·​ra·​tor kə-ˈla-bə-ˌrā-tər 

: a person who collaborates with another: such as

a

: someone who works with another person or group

They thanked their collaborators on the project.

With our students and collaborators, we have developed … a tool that couples a video camera with specialized computation.

—Frédo Durand et al.

b

: someone who assists an enemy (such as an invader or part of an occupying force)

… the Germans had allies and collaborators who, whether from conviction or perceived necessity, sought a privileged place in Hitler's New Order.

—Robert Skidelsky

Examples of collaborator in a Sentence

Recent Examples on the Web

Offer clear feedback to a collaborator in private, so mutual respect strengthens and the path forward becomes simpler for both of you. —Tarot.com, Baltimore Sun, 30 Mar. 2026

This month, Chollet and his collaborators launched ARC-AGI-3, the latest and most demanding version of the benchmark. —Jeremy Kahn, Fortune, 30 Mar. 2026

The fashion brand Tommy Hilfiger announced Monday that Chiefs tight end Travis Kelce had been hired as a global brand ambassador and creative collaborator. —Pete Grathoff, Kansas City Star, 30 Mar. 2026

Foote and Dickow have been collaborators for nearly three decades, playing together in Rex Ritter’s post-Jessamine band Fontanelle and the Portland post-rock band Nudge. —Daniel Bromfield, Pitchfork, 30 Mar. 2026

Word History

First Known Use

1802, in the meaning defined above

Rhymes for collaborator

• accelerator
• accumulator
• adjudicator
• administrator
• appropriator
• articulator
• attenuator
• bronchodilator
• communicator
• conciliator
• cooperator
• coordinator