n the act of caressing with the lips (or an instance thereof)
n a vehicle carrying many passengers; used for public transport
n the topology of a network whose components are connected by a busbar
n an electrical conductor that makes a common connection between several circuits
n a car that is old and unreliable
v touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.
v send or move around by bus
v ride in a bus
v remove used dishes from the table in restaurants