diner vs carver

diner and carver both are nouns.

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

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

Other hyponyms of diner include cutter, dining companion, tablemate.

diner (noun)	carver (noun)
a passenger car where food is served in transit	an artist who creates sculptures
a restaurant that resembles a dining car	someone who carves the meat
a person eating a meal (especially in a restaurant)	makes decorative wooden panels