Day: February 12, 2026

ORIGIN late Middle English: from Latin cooperatio (n-), from the verb cooperari (see cooperate); later reinforced by French coopération . 配合（我们的工作） collaboration |kəˌlabəˈrāSHən| noun 1 the action of working with someone to produce or create something: he wrote on art and architecture in collaboration with John Betjeman.