feast vs dinner

feast and dinner both are nouns.

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

As nouns, dinner is a hypernym of feast; that is, dinner is a word with a broader meaning than feast:

Other hypernyms of feast include dinner party.

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

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