party vs tea party

party and tea party both are nouns.

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

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

party: an occasion on which people can assemble for social interaction and entertainment
tea party: a party or reception at which tea is served

party (noun)	tea party (noun)
an occasion on which people can assemble for social interaction and entertainment	a party or reception at which tea is served
a gathering of people for pleasure
an organization to gain political power
a band of people associated temporarily in some activity
a person involved in legal proceedings

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