右腕[migiude] right arm
才腕[saiwan] skill
手腕[shuwan] ability
上腕[jouwan] upper arm
すご腕[sugoude] go-getter

切歯扼腕[sesshiyakuwan] being enraged (indignant, impatient)
敏腕[binwan] capable
片腕[kataude] one arm
両腕[ryouude] both arms

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