dinner vs feast

dinner and feast both are nouns.

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

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

Other hyponyms of dinner include banquet, beanfeast.

dinner (noun)	feast (noun)
the main meal of the day served in the evening or at midday	something experienced with great delight
a party of people assembled to have dinner together	an elaborate party (often outdoors)
	a meal that is well prepared and greatly enjoyed
	a ceremonial dinner party for many people

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