bus (b?s) n. pl. bus·es or bus·ses 1. A long motor vehicle for carrying passengers, usually along a fixed route. 2. Informal A large or ungainly automobile. 3. A four-wheeled cart for carrying dishes in a restaurant. 4. Electricity A bus bar. 5. Computers A parallel circuit that connects the major components of a computer, allowing the transfer of electric impulses from one connected component to any other. v. bused, bus·ing, bus·es or bussed , bus·sing , bus·ses v. tr. 1. To transport in a bus. 2. To transport (schoolchildren) by bus to schools outside their neighborhoods, especially as a means of achieving racial integration. 3. a. To carry or clear (dishes) in a restaurant. b. To clear dishes from (a table). v. intr. 1. To travel in a bus. 2. To work as a busboy. Idiom: throw (someone) under the bus To sacrifice or betray (another) for one’s own gain or in order to save oneself: “That is no reason … for a principled President to throw a large section of the country’s labor force under the bus” (Steve Coll). [Short for omnibus. V., intr., sense 2, back-formation from busboy.] American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.bus (b?s) n, pl buses or busses1. (Automotive Engineering) a large motor vehicle designed to carry passengers between stopping places along a regular route. More formal name: omnibus Sometimes called: motorbus 2. (Automotive Engineering) short for trolleybus3. (modifier) of or relating to a bus or buses: a bus driver; a bus station. 4. informal a car or aircraft, esp one that is old and shaky5. (Electronics) electronics computing short for busbar6. (Firearms, Gunnery, Ordnance & Artillery) the part of a MIRV missile payload containing the re-entry vehicles and guidance and thrust devices7. (Astronautics) astronautics a platform in a space vehicle used for various experiments and processes8. miss the bus to miss an opportunity; be too late9. throw someone under the bus chiefly US to expose someone to an unpleasant fate, esp in order to save oneselfvb, buses, busing, bused, busses, bussing or bussed10. to travel or transport by bus11. (Sociology) chiefly US and Canadian to transport (children) by bus from one area to a school in another in order to create racially integrated classes[C19: short for omnibus]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014bus1 (b?s) n., pl. bus?es, bus?ses, n. 1. a large, long-bodied motor vehicle equipped with seating for passengers, usu. operating as part of a scheduled service. 2. a similar horse-drawn vehicle. 3. a passenger automobile or airplane used in a manner resembling that of a bus. 4. a heavy bar of copper or other conducting material, used to collect, carry, and distribute powerful electric currents. 5. a circuit that connects the CPU with other devices in a computer. v.t. 6. to convey or transport by bus. 7. to transport (pupils) to school by bus, esp. as a means of achieving racial integration. v.i. 8. to travel on or by means of a bus. [1825?35; short for omnibus] bus2 (b?s) v.i., v.t. bused bussed, bus?ing bus?sing. to work as a busboy or busgirl. [1885?90; back formation from busboy] bus. business. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.bus – coachA bus is a large motor vehicle that carries passengers by road from one place to another.In Britain, a comfortable bus that carries passengers on long journeys is called a coach.In America, a vehicle designed for long journeys is usually called a bus.