dinner party vs feast

dinner party and feast both are nouns.

Word	Noun	Adjective	Verb	Adverb
dinner party	Yes	No	No	No
feast	Yes	No	Yes	No

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

Other hyponyms of dinner party include banquet, beanfeast.

dinner party (noun)	feast (noun)
a party of people assembled to have dinner together	something experienced with great delight
	an elaborate party (often outdoors)
	a meal that is well prepared and greatly enjoyed
	a ceremonial dinner party for many people

dinner party (verb)	feast (verb)
	partake in a feast or banquet
	provide a feast or banquet for
	gratify