bus vs computing machine

bus and computing machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
bus	Yes	No	Yes	No
computing machine	Yes	No	No	No

bus (noun)	computing machine (noun)
a vehicle carrying many passengers; used for public transport	a machine for performing calculations automatically
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)	computing machine (verb)
remove used dishes from the table in restaurants
ride in a bus
send or move around by bus