elevator man vs liftman

elevator man and liftman both are nouns.

Word	Noun	Adjective	Verb	Adverb
elevator man	Yes	No	No	No
liftman	Yes	No	No	No

As nouns, elevator man and liftman are synonyms defined as:

Other synonyms of elevator man include elevator boy.

elevator man (noun)	liftman (noun)
a man employed to operate an elevator	a man employed to operate an elevator