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

御誕生日おめでとうございます[otanjoubiomedetougozaimasu] Happy Birthday
また明日[mataashita] see you tomorrow
旭日[kyokujitsu] rising sun
旭日昇天[kyokujitsushouten] full of vigor and vitality (like the rising sun) (vigour)
或日[aruhi] one day (e.g. "one day while studying, ..")

一日の長[ichijitsunochou] superiority
一日一日[ichinichiichinichi] gradually
一日一夜[ichinichiichiya] all day and night
一日増しに[ichinichimashini] day by day
一日置き[ichinichioki] every other day

絵に描いた餠[enikaitamochi] pie in the sky
焼き餠[yakimochi] jealousy
鏡餠[kagamimochi] mirror-shaped mochi, usu. a pair stacked in order of size with a daidai on top, used as a New Year offering, then cut and eaten on January 11.
尻餠[shirimochi] falling on one's backside (behind, bottom)
餠肌[mochihada] soft skin

餠網[mochiami] grill or grate for toasting rice cakes
草餠[kusamochi] rice-flour dumplings mixed with mugwort
餠は餠屋[mochihamochiya] every man knows his own business best
供え餠[sonaemochi] offering of mochi rice cakes