bus

¹ American  

[buhs] / bʌs /

noun

plural

buses, busses

1. a large motor vehicle, having a long body, equipped with seats or benches for passengers, usually operating as part of a scheduled service; omnibus.

2. (formerly) a similar horse-drawn vehicle.

3. a passenger automobile or airplane used in a manner resembling that of a bus.

4. any vehicle operated to transport children to school.

5. a low, movable filing cabinet.

6. Also called busbar.  Also called bus bar,.  Electricity. a heavy conductor, often made of copper in the shape of a bar, used to collect, carry, and distribute powerful electric currents, as those produced by generators.

7. Computers. a circuit that connects the CPU with other devices in a computer.

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verb (used with object)

bused, bussed, busing, bussing

1. to convey or transport by bus.

   to bus the tourists to another hotel.

2. to transport (pupils) to school by bus, especially as a means of achieving socioeconomic or racial diversity among students in a public school.

verb (used without object)

bused, bussed, busing, bussing

1. to travel on or by means of a bus.

   We bused to New York on a theater trip.

idioms

1. throw (someone or something) under the bus, to abandon or sacrifice to an imminent negative outcome for expedience or profit, or to protect oneself and one's interests.

   The accused was asked to testify against Tony, but he refused to save himself by throwing his pal under the bus.

bus ² American  

[buhs] / bʌs /

verb (used with or without object)

bused, bussed, busing, bussing

1. to work or act as a busboy or busgirl.

   She bused for her meals during her student days.

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bus. ³ American  

abbreviation

1. business.

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bus British  

/ bʌs /

noun

1. Sometimes called: motorbus.  More formal name: omnibus.  a large motor vehicle designed to carry passengers between stopping places along a regular route

2. short for trolleybus

3. (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 shaky

5. electronics computing short for busbar

6. the part of a MIRV missile payload containing the re-entry vehicles and guidance and thrust devices

7. astronautics a platform in a space vehicle used for various experiments and processes

8. to miss an opportunity; be too late

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verb

1. to travel or transport by bus

2. to transport (children) by bus from one area to a school in another in order to create racially integrated classes

Etymology

Origin of bus¹

First recorded in 1825–35; short for omnibus; bus ¹ def. 6 short for omnibus bar

Origin of bus²

First recorded in 1830–40; back formation from busboy

Explanation

A bus is a long vehicle with many seats. An elementary school student might save a seat on the school bus each morning for her best friend. A city bus carries far more passengers than a private car, which makes it an efficient form of transportation. When bus is used as a verb, it means to transport by bus, sometimes in an effort to desegregate a school district: "The city will bus students from this neighborhood to the other side of town." It also means "to clear a table" in restaurant lingo, which is often done by a "bus boy" or a "busser."

Example Sentences

Its 30,000 district members include bus drivers, teaching assistants, supervision aides, custodians, gardeners, cafeteria workers and tech support workers.

From Los Angeles Times • Apr. 15, 2026

“I was so traumatized,” Morrow, a school bus driver and dog boarder, said in an interview.

From Salon • Apr. 15, 2026

The politician secured a greyhound racing ban, more money for childcare and discount bus travel in 2025's round of budget talks.

From BBC • Apr. 14, 2026

As a Single-A manager, he was responsible for lugging a printer onto the team bus and restocking the ink so he could have scouting reports in the dugout.

From The Wall Street Journal • Apr. 14, 2026

Danny glanced around the bus, a sinking feeling in his chest.

From "The Way to Rio Luna" by Zoraida Cordova