complain 2023.03.13 complainとは 意味・定義・例文 Verb 動詞 カムプレイン US /kəmˈpleɪn/ UK /kəmˈpleɪn/ 1. say that you do not like someone or something or you are unhappy or angry about them 文句を言う, 愚痴る Don't complain about everything I do.