muscle fiber vs muscle

muscle fiber and muscle both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscle fiber	Yes	No	No	No
muscle	Yes	No	Yes	No

muscle fiber (noun)	muscle (noun)
an elongated contractile cell that forms the muscles of the body	possessing muscular strength
	authority or power or force (especially when used in a coercive way)
	one of the contractile organs of the body
	animal tissue consisting predominantly of contractile cells
	a bully employed as a thug or bodyguard

muscle fiber (verb)	muscle (verb)
	make one's way by force