whiskers vs beaver

whiskers and beaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
whiskers	Yes	No	No	No
beaver	Yes	No	Yes	No

As nouns, beaver is a hyponym of whiskers; that is, beaver is a word with a more specific, narrower meaning than whiskers:

Other hyponyms of whiskers include fuzz, imperial, imperial beard, goatee, stubble, vandyke, vandyke beard, Attilio, soul patch.

whiskers (noun)	beaver (noun)
the hair growing on the lower part of a man's face	large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges
	a hat made with the fur of a beaver (or similar material)
	a movable piece of armor on a medieval helmet used to protect the lower face
	a man's hat with a tall crown; usually covered with silk or with beaver fur
	a full beard
	the soft brown fur of the beaver

whiskers (verb)	beaver (verb)
	work hard on something