beaver vs whiskers

beaver and whiskers both are nouns.

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

As nouns, whiskers is a hypernym of beaver; that is, whiskers is a word with a broader meaning than beaver:

Other hypernyms of beaver include beard, face fungus.

beaver (noun)	whiskers (noun)
large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges	the hair growing on the lower part of a man's face
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

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