Synonyms for Bath (same or very similar meaning)
WordNet sense 1 (a relatively large open container that you fill with water and use to wash the body):
bathtub, tub, bathing tubWordNet sense 2 (a room (as in a residence) containing a bathtub or shower and usually a washbasin and toilet):
bathroomWordNet sense 3 (clean one's body by immersion into water):
batheFrom the ODE community, based on WordNetadd/edit