passenger vs fare

passenger and fare both are nouns.

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

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

passenger: a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it
fare: a paying (taxi) passenger

Other hyponyms of passenger include commuter, hitchhiker, stowaway, straphanger.

passenger (noun)	fare (noun)
a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it	an agenda of things to do
	the food and drink that are regularly served or consumed
	a paying (taxi) passenger
	the sum charged for riding in a public conveyance

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