fawn vs deer

fawn and deer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fawn	Yes	No	Yes	No
deer	Yes	No	No	No

As nouns, deer is a hypernym of fawn; that is, deer is a word with a broader meaning than fawn:

fawn: a young deer
deer: distinguished from Bovidae by the male's having solid deciduous antlers

Other hypernyms of fawn include young mammal, cervid.

fawn (noun)	deer (noun)
a young deer	distinguished from Bovidae by the male's having solid deciduous antlers
a color or pigment varying around a light grey-brown color

fawn (verb)	deer (verb)
have fawns
try to gain favor by cringing or flattering
show submission or fear