wedding vs party

wedding and party both are nouns.

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

As nouns, party is a hypernym of wedding; that is, party is a word with a broader meaning than wedding:

wedding (noun)	party (noun)
the act of marrying; the nuptial ceremony	an occasion on which people can assemble for social interaction and entertainment
the social event at which the ceremony of marriage is performed	a gathering of people for pleasure
a party of people at a wedding	an organization to gain political power
	a band of people associated temporarily in some activity
	a person involved in legal proceedings

wedding (verb)	party (verb)
	have or participate in a party