collaboration.

1. Work undertaken together toward a shared purpose.

2. Cooperation with an enemy occupying force, especially against one's own community.

Use it for

Words that belong together

• research collaboration
• close collaboration

On the page

The archive grew through collaboration with local historians.

Usage notes

Primary category: academic / formal. Forms: Countable or uncountable by context; countable singular collaboration; plural collaborations. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, description. Commonness: common.