bus

noun

1
a vehicle carrying many passengers; used for public transport
he always rode the bus to work
2
a car that is old and unreliable
the fenders had fallen off that old bus
3
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
4
the topology of a network whose components are connected by a busbar

Also useful for “bus”:Unscrambler— Turn loose letters into real words