腰【こし】
lower back, waist, hips, lumbar region, body (of hair, noodle, paper, etc.), resilience, spring
本腰【ほんごし】
strenuous effort, earnestness, seriousness
弱腰【よわごし】
weak attitude
物腰【ものごし】
manner, demeanour, demeanor, bearing
腰掛ける【こしかける】
to sit (down)
腰掛け【こしかけ】
seat, bench, temporary job while looking for a better job or until one marries
腰部【ようぶ】
loins, hips, pelvic region, waist