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

喜び勇む[yorokobiisamu] to be in high spirits
侠勇[kyouyuu] gallantry
真勇[shinyuu] true courage
蛮勇[banyuu] foolhardiness
匹夫の勇[hippunoyuu] rash courage

武勇[buyuu] bravery
武勇伝[buyuuden] martial story
勇ましい[isamashii] brave
勇み足[isamiashi] overeagerness