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

糠喜び[nukayorokobi] premature joy
糠味噌[nukamiso] salted rice-bran paste for pickling
粉糠[konuka] rice bran
米糠[komenuka] rice bran
小糠雨[konukaame] light or fine rain

糠味噌臭い[nukamisokusai] overly concerned with domestic affairs
糠味噌漬け[nukamisozuke] vegetables pickled in salted rice-bran paste
糠油[nukaabura] rice-bran oil
糠雨[nukaame] a drizzle
糟糠[soukou] plain food

蝦夷[ezo] peoples formerly of northern Japan with distinct language and culture (i.e. the Ainu)
青竜蝦[shako] mantis shrimp (any marine crustacean of order Stomatopoda, esp. the species Oratosquilla oratoria)
車蝦[kurumaebi] kuruma prawn (Marsupenaeus japonicus)
蝦蟆[hikigaeru] toad (esp. the Japanese toad, Bufo japonicus)
蝦虎魚[haze] goby (fish)

竜蝦[iseebi] spiny lobster (esp. Japanese spiny lobster, Panulirus japonicus)
蝦夷松[ezomatsu] Yezo spruce (Picea jezoensis)
蝦夷菊[ezogiku] Chinese aster
蝦腰[ebigoshi] bent (with age)