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

一礼[ichirei] bow (salute, greeting)
家礼[kerai] retainer
回礼[kairei] going from door to door greeting relatives and friends
割礼[katsurei] circumcision (male)
儀礼[girei] etiquette

儀礼的[gireiteki] formal
儀礼兵[gireihei] guard of honor
虚礼[kyorei] empty (useless) formalities
偶像礼拝[guuzoureihai] idolatry
軍礼[gunrei] military honors