cave dweller vs cave man

cave dweller and cave man both are nouns.

Word	Noun	Adjective	Verb	Adverb
cave dweller	Yes	No	No	No
cave man	Yes	No	No	No

As nouns, cave dweller and cave man are synonyms defined as:

Other synonyms of cave dweller include caveman, troglodyte.

cave dweller (noun)	cave man (noun)
someone who lives in a cave	someone who lives in a cave