bath-tub

n = bath 2.

bass, basset, bassinet, bassoon, bast, bastard, bastardization, -isation, bastardize, -ise, bastardy, baste, Bastille, bastinado, bastion, bat, batch, batch processing, bated, bath, bath chair, bath mat, bathe, bathed, bather, bathetic, bathing, bathing suit, bathing-cap, bathing-costume (also bathing-suit), bathos, bathrobe (also robe), bathroom, bathysphere, batik, batiste, batman, baton, bats, batsman, battalion, batten,