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

ジュラ紀[juraki] Jurassic Period
一新紀元[isshinkigen] new era
一世紀[isseiki] century
紀伊國屋[kinokuniya] Kinokuniya
紀元[kigen] era

紀元後[kigengo] post-era
紀元前[kigenzen] pre-era
紀行[kikou] traveller's journal
紀行文[kikoubun] traveller's journal
紀要[kiyou] bulletin