diner vs carriage

diner and carriage both are nouns.

Word	Noun	Adjective	Verb	Adverb
diner	Yes	No	No	No
carriage	Yes	No	No	No

As nouns, carriage is a hypernym of diner; that is, carriage is a word with a broader meaning than diner:

Other hypernyms of diner include coach, passenger car.

diner (noun)	carriage (noun)
a passenger car where food is served in transit	a vehicle with wheels drawn by one or more horses
a restaurant that resembles a dining car	a railcar where passengers ride
a person eating a meal (especially in a restaurant)	a machine part that carries something else
	a small vehicle with four wheels in which a baby or child is pushed around
	characteristic way of bearing one's body