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Synonyms

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

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 way the chassis rules have been adapted to fit in with the demands of the new engines has changed the nature of racing in F1.

From BBC • Apr. 3, 2026

The chassis forms the framework of the diaper, and the part of it that sits against the baby’s skin needs to be soft and nonirritating.

From The Wall Street Journal • Mar. 20, 2026

“Eliminating the permanent chassis rule could potentially open the door to a far broader range of factory-built housing that is significantly cheaper to produce,” Zandi of Moody’s Analytics, told Barron’s.

From Barron's • Mar. 13, 2026

Starting at $42,480, the Autobahn trim adds lovely 19-inch alloy wheels wrapped with 235/35 summer performance tires; adaptive chassis control; head-up display; and heated/ventilated front seats wrapped in perforated leather.

From The Wall Street Journal • Mar. 6, 2026

I’d built it myself, piece by piece, inside a modded mirror-black Odinware sphere chassis.

From "Ready Player One: A Novel" by Ernest Cline

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.