shower stall vs shower bath

shower stall and shower bath both are nouns.

Word	Noun	Adjective	Verb	Adverb
shower stall	Yes	No	No	No
shower bath	Yes	No	No	No

As nouns, shower stall and shower bath are synonyms defined as:

shower stall and shower bath: booth for washing yourself, usually in a bathroom

shower stall (noun)	shower bath (noun)
booth for washing yourself, usually in a bathroom	washing yourself by standing upright under water sprayed from a nozzle
	booth for washing yourself, usually in a bathroom