bath 1 
(băth, bäth)
(băth, bäth)n. pl. baths (băthz, bäthz, băths, bäths)
1.
a. The act of soaking or cleansing the body, as in water or steam.
b. The water used for cleansing the body: I'm going to run a bath.
2.
a. A bathtub.
b. A bathroom.
3. A building equipped for bathing.
4. often baths A resort providing therapeutic baths; a spa.
5.
a. A liquid in which something is dipped or soaked for processing: immersed the metal in an acid bath.
b. A container holding such a liquid: emptied the bath of dye.
6.
a. A medium, such as oil or sand, that controls the temperature of objects placed in it.
b. A container holding such a medium.
[Middle English, from Old English bæth.]