fare vs carfare

fare and carfare both are nouns.

Word	Noun	Adjective	Verb	Adverb
fare	Yes	No	Yes	No
carfare	Yes	No	No	No

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

Other hyponyms of fare include airfare, bus fare, cab fare, taxi fare, train fare.

fare (noun)	carfare (noun)
an agenda of things to do	the fare charged for riding a bus or streetcar
the food and drink that are regularly served or consumed
a paying (taxi) passenger
the sum charged for riding in a public conveyance

fare (verb)	carfare (verb)
eat well
proceed or get along