級きゅう友ゆうきゅうゆうJLPTN1Freq.FrequencyTop 50,000Meanings1nounclassmateRefers to a fellow student in the same class or grade at school. Slightly more formal than クラスメート.彼かれは高こう校こう時じ代だいの級きゅう友ゆうです。He is a classmate from my high school days.級きゅう友ゆうと一いっ緒しょに勉べん強きょうするのが好すきだ