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

串カツ[kushikatsu] fried pork and negi on skewers
串焼[kushiyaki] grilling on a skewer
串揚げ[kushiage] fried vegetables and meat on skewer
串戲[joudan] jest
竹串[takegushi] bamboo skewer

焼き串[yakigushi] skewer
串刺し[kushizashi] skewer
串柿[kushigaki] dried persimmons on a skewer
玉串[tamagushi] branch of a sacred tree (esp. sakaki) with paper or cotton strips attached (used as an offering)