musclebuilding vs bodybuilding

musclebuilding and bodybuilding both are nouns.

Word	Noun	Adjective	Verb	Adverb
musclebuilding	Yes	No	No	No
bodybuilding	Yes	No	No	No

As nouns, musclebuilding and bodybuilding are synonyms defined as:

musclebuilding and bodybuilding: exercise that builds muscles through tension

Other synonyms of musclebuilding include anaerobic exercise, muscle building.

musclebuilding (noun)	bodybuilding (noun)
exercise that builds muscles through tension	exercise that builds muscles through tension