musclebuilder vs bodybuilder

musclebuilder and bodybuilder both are nouns.

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

As nouns, musclebuilder and bodybuilder are synonyms defined as:

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

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

musclebuilder (noun)	bodybuilder (noun)
someone who does special exercises to develop a brawny musculature	someone who does special exercises to develop a brawny musculature