maintenance man vs repairman

maintenance man and repairman both are nouns.

Word	Noun	Adjective	Verb	Adverb
maintenance man	Yes	No	No	No
repairman	Yes	No	No	No

As nouns, maintenance man and repairman are synonyms defined as:

maintenance man and repairman: a skilled worker whose job is to repair things

Other synonyms of maintenance man include service man.

maintenance man (noun)	repairman (noun)
a skilled worker whose job is to repair things	a skilled worker whose job is to repair things