tea vs repast

tea and repast both are nouns.

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

As nouns, repast is a hypernym of tea; that is, repast is a word with a broader meaning than tea:

Other hypernyms of tea include meal.

tea (noun)	repast (noun)
a beverage made by steeping tea leaves in water	the food served and eaten at one time
a light midafternoon meal of tea and sandwiches or cakes
dried leaves of the tea shrub; used to make tea
a tropical evergreen shrub or small tree extensively cultivated in e.g. China and Japan and India; source of tea leaves