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

御辞儀[ojigi] bow
御世辞[oseji] flattery
引責辞任[insekijinin] taking responsibility upon oneself (and resigning)
英和辞典[eiwajiten] English-Japanese dictionary
冠辞[kanji] stereotyped epithet

漢英辞典[kaneijiten] Kanji to English dictionary
疑辞[giji] questionable word
訓辞[kunji] admonitory speech (e.g. to students)
固辞[koji] decline positively