Dictionary/ちゃんChanJLPT N4ちゃん (Chan) is a Japanese suffix meaning “suffix for familiar person”.Meaningssuffixsuffix for familiar personExamples真理恵ちゃん、すごいなあ。That a girl, Marie!愛ちゃんは私のそばに座った。Ai sat down beside me.お誕生日おめでとう相葉ちゃん！Happy birthday, Miss Aiba!Sentences from Tatoeba (CC BY 2.0 FR).