cooperation 2023.03.13 cooperationとは 意味・定義・例文 Noun 名詞 コウアパれイしゃン US /koʊˌɑpəˈreɪʃən/ UK /kəʊˌɒpəˈreɪʃᵊn/ 1. the act of working together with others to get something done 協力, 協同, 援助, 手助け We completed this project in cooperation with them.