seawater or saltwater bath

a bath (a single instance of taking a bath)

being the first to enter a freshly-prepared bath

exclusively reserved bath (found at ryokans)

(rare) a female given name

湯桶: A lacquerware container with a spout for holding broth or tea for consumption after a meal; a type of tea caddy shaped like a pail.

a hot spring one has discovered that he/she wishes to keep secret from others, a secret hot spring

a hot water bottle / (Kansai) a tall kettle used to heat sake

a hot water bottle

men's bath (in a public bath)