party vs fete

party and fete both are nouns.

Word	Noun	Adjective	Verb	Adverb
party	Yes	No	Yes	No
fete	Yes	No	Yes	No

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

party: an occasion on which people can assemble for social interaction and entertainment
fete: an elaborate party (often outdoors)

As verbs, fete is a hypernym of party; that is, fete is a word with a broader meaning than party:

Other hypernyms of party include celebrate.

party (noun)	fete (noun)
an occasion on which people can assemble for social interaction and entertainment	an organized series of acts and performances (usually in one place)
a gathering of people for pleasure	an elaborate party (often outdoors)
an organization to gain political power
a band of people associated temporarily in some activity
a person involved in legal proceedings

party (verb)	fete (verb)
have or participate in a party	have a celebration