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

鵜飼[ugai] cormorant fishing
鵜呑み[unomi] swallowing (food, story)
鵜匠[ushou] cormorant fisherman
ガラパゴス小羽鵜[garapagosukobaneu] flightless cormorant
小羽鵜[kobaneu] short-winged cormorant

鵜松明樺[udaikanba] monarch birch (Betula maximowicziana)
海鵜[umiu] Japanese cormorant (Phalacrocorax capillatus)
河鵜[kawau] great cormorant (Phalacrocorax carbo)
鵜の目鷹の目[unometakanome] eyes of a predator