motorbus vs bus

motorbus and bus both are nouns.

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

As nouns, motorbus and bus are synonyms defined as:

motorbus and bus: a vehicle carrying many passengers; used for public transport

Other synonyms of motorbus include autobus, charabanc, coach, double-decker, jitney, motorcoach, omnibus, passenger vehicle.

motorbus (noun)	bus (noun)
a vehicle carrying many passengers; used for public transport	a vehicle carrying many passengers; used for public transport
	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

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