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

お負けに[omakeni] to make matters worse
依怙贔負[ekohiiki] favoritism
一六勝負[ichirokushoubu] gambling
下請負[shitaukeoi] subcontract
夏負け[natsumake] suffering from summer heat

丸負け[marumake] complete defeat
気負い[kioi] fighting spirit
元請け負い人[motoukeoinin] master contractor
言負かす[iimakasu] to talk (a person) down
固定負債[koteifusai] fixed liabilities