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

火口湖[kakouko] crater lake
湖沼[koshou] lakes and marshes
湖上[kojou] on the lake
湖水[kosui] lake
湖畔[kohan] lake shore

湖面[komen] lake surface
江湖[kouko] the public
人造湖[jinzouko] artificial lake
中禅寺湖[chuuzenjiko] Lake Chuzenji

琵琶[biwa] biwa (Japanese lute)
琵琶行[biwakou] biwa song
琵琶湖[biwako] Lake Biwa
琵琶笛[biyabon] Edo-period mouth harp (with a hairpin-like frame and a long straight tongue)
琵琶鱒[biwamasu] biwa trout (Oncorhynchus masou rhodurus)

薩摩琵琶[satsumabiwa] Satsuma biwa (or its music)
琵琶の琴[biwanokoto] biwa (4 or 5-stringed Oriental lute)
平家琵琶[heikebiwa] chanting of the Heike Monogatari to biwa accompaniment
琵琶湖大鯰[biwakooonamazu] Lake Biwa catfish (Silurus biwaensis)
琵琶鰉[biwahigai] Biwa oily gudgeon (Sarcocheilichthys variegatus microoculus)

琵琶[biwa] biwa (Japanese lute)
琵琶行[biwakou] biwa song
琵琶湖[biwako] Lake Biwa
琵琶笛[biyabon] Edo-period mouth harp (with a hairpin-like frame and a long straight tongue)
琵琶鱒[biwamasu] biwa trout (Oncorhynchus masou rhodurus)

薩摩琵琶[satsumabiwa] Satsuma biwa (or its music)
琵琶の琴[biwanokoto] biwa (4 or 5-stringed Oriental lute)
平家琵琶[heikebiwa] chanting of the Heike Monogatari to biwa accompaniment
琵琶湖大鯰[biwakooonamazu] Lake Biwa catfish (Silurus biwaensis)
琵琶鰉[biwahigai] Biwa oily gudgeon (Sarcocheilichthys variegatus microoculus)