noun
cooperation
koh-op-uh-RAY-shun/kəʊˌɑːpəˈreɪʃn/
Working together toward a shared purpose.
The volunteers' cooperation lets them hold, align, and fasten the bench parts together.

Etymology
The action-noun ending turns working together into the name of an activity. Cooperation is that shared effort viewed as a process directed toward one end.
In context
So now, we love cooperation. There's no better joy than working together, is there? And then not only humans. Then, of course, there's the struggle for life …
More examples
- International cooperation helps scientists track the spread of disease.
- The cleanup requires cooperation from everyone in the neighborhood.
- We organize the festival in cooperation with local businesses.
Forms
cooperate verb — To work together toward a shared goal.
cooperative adjective — Willing to work together with others.
Similar words
- collaboration
- Emphasizes jointly creating something or developing a specific project.
- teamwork
- Emphasizes coordinated effort among members of a team.