cooperative [cooperatives]◼◼◼(type of company) noun [UK: kəʊ.ˈɒ.pə.rə.tɪv] [US: koʊ.ˈɒ.pə.rə.tɪv]My mother attached herself to a cooperative society. = Ma mère est entrée dans la coopérative.
cooperation [cooperations]◼◼◻(association for mutual benefit) noun [UK: kəʊ.ˌɒ.pə.ˈreɪʃ.n̩] [US: koʊ.ˌɒ.pə.ˈreɪʃ.n̩]