胡椒[koshou] pepper
山椒[sanshou] Japanese pepper (species of Sichuan pepper, Zanthoxylum piperitum)
山椒魚[sanshouuo] salamander
蕃椒[tongarashi] capsicum (Capsicum annuum, esp. the cultivated chili peppers)
胡椒入れ[koshouire] pepper shaker

大山椒魚[oosanshouuo] Japanese giant salamander (Andrias japonicus)
塩胡椒[shiokoshou] salt and pepper
花椒[kashou] Sichuan pepper (tree) (Zanthoxylum bungeanum)
黒胡椒[kurokoshou] black pepper (Piper nigrum)
青椒肉絲[chinjaoroosu] Chinese stir-fry containing green peppers and meat

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