fuzz vs beard

fuzz and beard both are nouns.

Word	Noun	Adjective	Verb	Adverb
fuzz	Yes	No	No	No
beard	Yes	No	Yes	No

As nouns, beard is a hypernym of fuzz; that is, beard is a word with a broader meaning than fuzz:

Other hypernyms of fuzz include face fungus, whiskers.

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

fuzz: filamentous hairlike growth on a plant
beard: a tuft or growth of hairs or bristles on certain plants such as iris or grasses

Other hyponyms of fuzz include stinging hair.

fuzz (noun)	beard (noun)
the first beard of an adolescent boy	tuft of strong filaments by which e.g. a mussel makes itself fast to a fixed surface
a hazy or indistinct representation	hairy growth on or near the face of certain mammals
uncomplimentary terms for a policeman	the hair growing on the lower part of a man's face
filamentous hairlike growth on a plant	a person who diverts suspicion from someone (especially a woman who accompanies a male homosexual in order to conceal his homosexuality)
	a tuft or growth of hairs or bristles on certain plants such as iris or grasses

fuzz (verb)	beard (verb)
	go along the rim, like a beard around the chin