party vs wedding

party and wedding both are nouns.

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

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

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

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