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

半平[hanpei] pounded fish cake
一紙半銭[isshihansen] small sum
一知半解[icchihankai] superficial knowledge
一半[ippan] half
印半天[shirushibanten] livery coat

下四半期[shimoshihanki] last quarter (of the year)
下半[kahan] lower half
過半[kahan] the greater part
過半数[kahansuu] majority
脚半[kyahan] gaiters