テレビ局[terebikyoku] television station
医局[ikyoku] medical office
一局[ikkyoku] one game (checkers, etc.)
一局部[ichikyokubu] one part
衛星地球局[eiseichikyuukyoku] (satellite) earth station

開局[kaikyoku] opening of post-office or telephone exchange
外局[gaikyoku] external bureau
管理局[kanrikyoku] administration bureau
危局[kikyoku] crisis
共産党政治局[kyousantouseijikyoku] Politburo

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