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

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book