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

Among those present is Kate Siegel, Flanagan’s wife and longtime collaborator from their days on Hush (2016) and Oculus (2013). — Entertainment Weekly, 15 Sep. 2026

But while the individual tax-return data Piketty and his collaborators used could show how much more income was flowing to the top, those returns weren't linked to detailed records about the businesses generating much of that income. — Greg Rosalsky, NPR, 14 Sep. 2026

In 2025, Begelman and his collaborator Jason Dexter applied the quasi-star model to the little red dots. — Quanta Magazine, 14 Sep. 2026

Snyder’s longtime collaborator Hans Zimmer, alongside Omer Benyamin and Steven Doar, composed the film’s music. — Abid Rahman, HollywoodReporter, 14 Sep. 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