garbage man vs garbage collector

garbage man and garbage collector both are nouns.

Word	Noun	Adjective	Verb	Adverb
garbage man	Yes	No	No	No
garbage collector	Yes	No	No	No

As nouns, garbage man and garbage collector are synonyms defined as:

garbage man and garbage collector: someone employed to collect and dispose of refuse

Other synonyms of garbage man include dustman, garbage carter, garbage hauler, garbageman, refuse collector.

garbage man (noun)	garbage collector (noun)
someone employed to collect and dispose of refuse	someone employed to collect and dispose of refuse