cooperative

1 co·op·er·a·tive
/koʊˈɑ:prətɪv/
adjective
[more cooperative; most cooperative]
1 : willing to be helpful by doing what someone wants or asks for
▪ cooperative children ▪ The witness was very cooperative. — opposite uncooperative
2 : involving two or more people or groups working together to do something
▪ a cooperative [=joint, combined] effort/venture
3 : relating to a business or organization that is owned and operated by the people who work there or the people who use its services
▪ a cooperative store
— co·op·er·a·tive·ly adverb
▪ The group acted cooperatively. ▪ a cooperatively owned store
— co·op·er·a·tive·ness noun [noncount]
▪ He demonstrated his cooperativeness on many occasions.

2 co·op·er·a·tive noun
plural cooperatives
 [count] : a business or organization that is owned and operated by the people who work there or the people who use its services
▪ the local farmers' cooperative