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

明白[meihaku] obvious
白地[akarasama] plain
白口[shiroguchi] white croaker (Pennahia argentata)
白耳義[berugii] Belgium
白竜[peeron] dragon boat (long 22-person canoe used for racing)

黄白[kouhaku] yellow and white
黄白色[ouhakushoku] yellowish-white
灰白[kaihaku] gray
灰白質[kaihakushitsu] gray matter
灰白色[kaihakushoku] grayish white

御盆[obon] O-Bon
丸盆[marubon] round tray
旧盆[kyuubon] Bon Festival of the lunar calendar
覆水盆に帰らず[fukusuibonnikaerazu] what's done is done (lit: spilt water won't go back into its tray)
盆画[bonga] tray landscape

盆景[bonkei] miniature garden
盆栽[bonsai] bonsai
盆祭り[bonmatsuri] Bon Festival
盆石[bonseki] tray-landscape foundation stone