御三時[osanji] three-o'clock snack
三鞭酒[shanpen] champagne
球面三角法[kyuumensankakuhou] spherical trigonometry
胸三寸[munesanzun] heart
元三[ganzan] New Year's period (January 1st to 3rd)

五十三次[gojuusantsugi] the 53 Toukaidou stages
向こう三軒[mukousangen] one's next three neighbors
降三世明王[gouzanzemyouou] Trailokyavijaya Vidya-raja
再三[saisan] again and again
再三再四[saisansaishi] repeatedly

悪友[akuyuu] undesirable friend
畏友[iyuu] one's esteemed friend
益友[ekiyuu] good friend
学友[gakuyuu] school friend
級友[kyuuyuu] classmate

旧友[kyuuyuu] crony
血友病[ketsuyuubyou] haemophilia
交友[kouyuu] friend
交友関係[kouyuukankei] one's relationships
校友[kouyuu] schoolmate

汚損[oson] stain
丸損[maruzon] total loss
欠損[kesson] deficit
見損う[misokonau] to misjudge
見損ねる[misokoneru] to miss seeing

作り損じる[tsukurisonjiru] to fail in making
刷り損なう[surisokonau] to misprint
自動車損害賠償責任保険[jidoushasongaibaishousekininhoken] mandatory vehicle liability insurance
出損なう[desokonau] to fail to go
出来損なう[dekisokonau] to be badly made