grouse vs complain

grouse is a noun but complain is not a noun.

Word	Noun	Adjective	Verb	Adverb
grouse	Yes	No	Yes	No
complain	No	No	Yes	No

As verbs, complain is a hypernym of grouse; that is, complain is a word with a broader meaning than grouse:

Other hypernyms of grouse include kick, kvetch, plain, quetch, sound off.

grouse (noun)	complain (noun)
popular game bird having a plump body and feathered legs and feet
flesh of any of various grouse of the family Tetraonidae; usually roasted; flesh too dry to broil

grouse (verb)	complain (verb)
complain	express complaints, discontent, displeasure, or unhappiness
hunt grouse	make a formal accusation; bring a formal charge