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chassis

American  
[chas-ee, -is, shas-ee] / ˈtʃæs i, -ɪs, ˈʃæs i /

noun

  1. Automotive. the frame, wheels, and machinery of a motor vehicle, on which the body is supported.

  2. Ordnance. the frame or railway on which a gun carriage moves backward and forward.

  3. the main landing gear of an aircraft; that portion of the landing gear that supports an aircraft.

  4. Radio and Television. a frame for mounting the circuit components of a radio or television set.

  5. a construction forming the sides, top, and bottom of a cabinet, showcase, or the like.


chassis British  
/ ˈʃæsɪ /

noun

  1. the steel frame, wheels, engine, and mechanical parts of a motor vehicle, to which the body is attached

  2. electronics a mounting for the circuit components of an electrical or electronic device, such as a radio or television

  3. the landing gear of an aircraft

  4. obsolete a wooden framework for a window, screen, etc

  5. the frame on which a cannon carriage moves backwards and forwards

  6. slang the body of a person, esp a woman

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

noun

Etymology

Origin of chassis

1655–65; < French châssis frame; akin to chase 2

Explanation

A chassis is the frame of a car. If you warp the chassis of your mom’s car when you make a Dukes of Hazzard jump, she's going to be mad. Pronounce chassis CHASS-ee (singular) and CHASS-eez (plural). Chassis comes from the Latin capsa, meaning box. In the 1600s, chassis referred to window frames, and starting with early automobile production, acquired its dominant meaning, i.e., the box that is the frame for the car. It also means other kinds of frame/boxes too — if you have a radio or a stereo, the outside box is called a chassis.

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Vocabulary lists containing chassis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The spacecraft chassis for Psyche's high power solar-electric propulsion system was provided by Intuitive Machines in Palo Alto, California.

From Science Daily • May 26, 2026

The solution would be either a cost-cap allowance to modify the chassis to accept larger tanks, or slightly shorter races.

From BBC • May 14, 2026

“The bones and the chassis of the garment are very much performance-based, but the body that goes over top of it — what we see — should be stylish,” says Heifner.

From Los Angeles Times • May 11, 2026

The company unveiled the car’s chassis, motor, and battery pack in October, although soft sales guidance overshadowed the luxury launch event.

From Barron's • May 5, 2026

After a few tries, he finally gets the engine started and we head down the driveway, the chassis squeaking and groaning.

From "Merci Suárez Changes Gears" by Meg Medina

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