muscle-builder vs muscleman

muscle-builder and muscleman both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscle-builder	Yes	No	No	No
muscleman	Yes	No	No	No

As nouns, muscle-builder and muscleman are synonyms defined as:

muscle-builder and muscleman: someone who does special exercises to develop a brawny musculature

Other synonyms of muscle-builder include bodybuilder, muscle builder, musclebuilder.

muscle-builder (noun)	muscleman (noun)
someone who does special exercises to develop a brawny musculature	a bully employed as a thug or bodyguard
	someone who does special exercises to develop a brawny musculature