musclebuilder vs muscleman

musclebuilder and muscleman both are nouns.

Word	Noun	Adjective	Verb	Adverb
musclebuilder	Yes	No	No	No
muscleman	Yes	No	No	No

As nouns, musclebuilder and muscleman are synonyms defined as:

musclebuilder and muscleman: someone who does special exercises to develop a brawny musculature

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

musclebuilder (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