# collaborator

/kəˈɫæbɝˌeɪtɝ/ (US) · /kəlˈæbɔːɹˌeɪtɐ/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/collaborator
Updated: 2026-05-08

## Definition

a person who works with others to achieve a goal or create something. You use this for people who share ideas on a project, like writing a book or starting a business.

For teachers: a person who works jointly on an activity or project. In a historical context, it refers to an individual who cooperates with an enemy nation occupying their country.

## Examples

- She is a frequent collaborator on my research projects.
- The director thanked every collaborator who helped bring the complex stage production to life.

## Usage notes

- Often followed by the preposition 'on' for projects or 'with' for people.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.