classmate 2023.03.13 classmateとは 意味・定義・例文 Noun 名詞 クラスメイト US /ˈklæˌsmeɪt/ UK /ˈklɑːsmeɪt/ 1. a fellow member of a class at school, university, or college クラスメート, 同級生 Mom and Dad were classmates in high school.