本の[honno] mere
異本[ihon] different edition
一坪本社[hitotsubohonsha] small company headquarters located in Tokyo simply for name value
一本[ippon] one long cylindrical thing
一本気[ippongi] single-minded (esp. personality or person)

一本橋[ipponbashi] (a) log bridge
一本建て[ippondate] (a) single standard
一本松[ipponmatsu] solitary pine tree
一本杉[ipponsugi] (a) solitary cryptomeria tree
一本槍[ipponyari] guiding principle

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
挨拶状[aisatsujou] greeting card
依頼状[iraijou] written request
委任状[ininjou] commission
異状[ijou] something wrong

遺言状[yuigonjou] will
渦状[kajou] spiral
液状[ekijou] liquid state
円盤状[enbanjou] disk-shaped
仮免状[karimenjou] temporary certificate