muscle cell vs muscle fibre

muscle cell and muscle fibre both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscle cell	Yes	No	No	No
muscle fibre	Yes	No	No	No

As nouns, muscle cell and muscle fibre are synonyms defined as:

muscle cell and muscle fibre: an elongated contractile cell that forms the muscles of the body

Other synonyms of muscle cell include muscle fiber.

muscle cell (noun)	muscle fibre (noun)
an elongated contractile cell that forms the muscles of the body	an elongated contractile cell that forms the muscles of the body