Definition of "Bus" :
noun: a vehicle carrying many passengers; used for public transport
"He always rode the bus to work."
noun: a car that is old and unreliable
"The fenders had fallen off that old bus."
noun: an electrical conductor that makes a common connection between several circuits
"The busbar in this computer can transmit data either way between any two components of the system."
noun: the topology of a network whose components are connected by a busbar
verb: remove used dishes from the table in restaurants
verb: ride in a bus
verb: send or move around by bus
"The children were bussed to school."