cooperation
n. uncountablen. working together with other people to reach a goal or finish a task.
n. the process of working together to the same end; the action of assisting someone or complying with their requests.
The project was successful thanks to the cooperation of everyone involved.
Local police requested the cooperation of the public to help identify the suspect in the security footage.
International cooperation on climate policy remains a delicate balancing act between national economic interests and the collective necessity for carbon reduction.
First attested in 1620–1630. Borrowed from French cooperation, from Late Latin cooperātiō. By surface analysis, co- + operation or cooperate + -ion.
Frequently paired with the preposition 'between' for groups or 'with' for specific partners.
They worked in a cooperation.They worked in cooperation.When referring to the act of working together, the noun is uncountable and does not take an indefinite article.