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

焦らす[jirasu] to irritate
焦れったい[jirettai] vexing
黒焦げ[kurokoge] something burnt black
三重焦点[sanjuushouten] trifocal
想い焦れる[omoikogareru] to pine for

焼け焦げ[yakekoge] burn hole
焦がす[kogasu] to burn
焦がれる[kogareru] to yearn for
焦げる[kogeru] to burn
焦げ臭い[kogekusai] smelling (or tasting) burnt