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

蜷局[toguro] coil
蜷局を巻く[togurowomaku] to coil itself (e.g. a snake)

牙海蜷[kibauminina] mud creeper (Terebralia palustris)
海蜷[uminina] many-formed cerith (Batillaria multiformis)