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

安静[ansei] rest
安静時[anseiji] resting
閑静[kansei] quiet (e.g. neighbourhood, neighborhood)
頸静脈[keijoumyaku] jugular vein
寝静まる[neshizumaru] to fall asleep

静か[shizuka] quiet
静けさ[shizukesa] stillness
静岡県[shizuokaken] Shizuoka prefecture (Chuubu area)
静穏[seion] serene
静観[seikan] watchful waiting