bus vs passenger

bus and passenger both are nouns.

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

bus (noun)	passenger (noun)
a vehicle carrying many passengers; used for public transport	a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it
a car that is old and unreliable
an electrical conductor that makes a common connection between several circuits
the topology of a network whose components are connected by a busbar

bus (verb)	passenger (verb)
remove used dishes from the table in restaurants
ride in a bus
send or move around by bus