一貫[ikkan] consistency
一貫して[ikkanshite] consistently
一貫性[ikkansei] consistency
一貫番号[ikkanbangou] serial number
看貫[kankan] weighing

貫き通す[tsuranukitoosu] to go through
貫く[tsuranuku] to go through
貫通[kantsuu] pierce
貫徹[kantetsu] accomplishment
貫流[kanryuu] flowing through

一首[isshu] tanka
鎌首[kamakubi] sickle-shaped neck (e.g. snake, praying mantis)
丸首[marukubi] round-necked (T-shirt)
偽首[nisekubi] falsified severed head
カリ首[karikubi] (something resembling a) goose's neck

がん首[gankubi] head of a pipe, incl. the bowl and stem attachment
機首[kishu] nose (of plane)
襟首[erikubi] nape of neck
元首[genshu] ruler
絞首刑[koushukei] death by hanging