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

お花見[ohanami] cherry blossom viewing
一花[hitohana] success
卯の花[unohana] bean-curd lees
雲鬢花顔[unbinkagan] beautiful woman (metaphorical)
黄花[kouka] chrysanthemum

火花[hibana] spark
花の木[hananoki] flowering tree
花瓣[hanabira] (flower) petal
花より団子[hanayoridango] dumplings rather than flowers

鳥竜茶[uuroncha] oolong tea
愛鳥[aichou] pet bird
鳥渡[choto] just a minute
一石二鳥[issekinichou] killing two birds with one stone
益鳥[ekichou] beneficial bird

黄鳥[kouchou] Japanese bush warbler (Cettia diphone)
伽藍鳥[garanchou] pelican
火食鳥[hikuidori] cassowary (Casuarius spp.)
花鳥[kachou] flowers and birds
花鳥風月[kachoufuugetsu] beauties of nature