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chassis

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

noun

plural

chassis
  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

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 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

The chassis is mounted on hydraulic pillars, so that it gives a sensation of movement in terms of pitch and roll and bumps and so on.

From BBC • Apr. 28, 2026

They traded in Mark’s 1955 Chevrolet Bel-Air for a chassis and spent eight years competing on weekends all over the country.

From The Wall Street Journal • Apr. 24, 2026

Sometimes compressor pumps and material can be mounted on truck chassis, but there is no blanket spraying.

From "Silent Spring" by Rachel Carson

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