musquash vs gnawer

musquash and gnawer both are nouns.

Word	Noun	Adjective	Verb	Adverb
musquash	Yes	No	No	No
gnawer	Yes	No	No	No

As nouns, gnawer is a hypernym of musquash; that is, gnawer is a word with a broader meaning than musquash:

musquash: beaver-like aquatic rodent of North America with dark glossy brown fur
gnawer: relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing

Other hypernyms of musquash include rodent.

musquash (noun)	gnawer (noun)
beaver-like aquatic rodent of North America with dark glossy brown fur	relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing