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

竪縞[tatejima] vertical stripes
竪琴[tategoto] harp
竪子[jushi] child
竪穴[tateana] pit
竪笛[tatebue] end-blown flute (esp. the recorder)

竪坑[tatekou] shaft (e.g. in a mine)
竪子[tatego] lattice
竪樋[tatedoi] downpipe
竪琴海豹[tategotoazarashi] harp seal (Phoca groenlandica)