chas·​sis ˈcha-sē How to pronounce chassis (audio) ˈsha-sē How to pronounce chassis (audio)
 also  ˈcha-səs
plural chassis ˈcha-sēz How to pronounce chassis (audio)
: the supporting frame of a structure (such as an automobile or television)
Leaf springs are attached to the car's chassis.
also : the frame and working parts (as of an automobile or electronic device) exclusive of the body or housing

Examples of chassis in a Sentence

Recent Examples on the Web So nicknamed for its intricate tube chassis, the model found notoriety despite never offering the reliability necessary for consistent victories. Basem Wasef, Robb Report, 5 July 2024 The case complies with Nvidia’s new SFF-Ready guidelines, also announced at Computex, for component fitment in small chassis. John Burek, PCMAG, 29 June 2024 Before the race in Barcelona, his team switched back to a chassis used earlier in the year in hopes of curing its issues; Zhou finished 13th. Roman Stubbs, Washington Post, 27 June 2024 On the left side is another control to switch the chassis settings between Comfort, Sport, and Track. Jonathan M. Gitlin, Ars Technica, 16 June 2024 See all Example Sentences for chassis 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chassis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


borrowed from French châssis "window sash, cold frame, frame holding cloth to be painted or embroidered, supporting frame of a motor vehicle," going back to Old French chasiz "window frame" from casse (Anglo-Norman & Norman dialect) "reliquary" (Middle French chasse "frame, mount") + -iz, denominal collective suffix, often of things linked or intertwined, of uncertain origin — more at case entry 2

Note: To judge by the derivative chasiz, attested already in the twelfth century (Roman d'Énéas), the meaning "frame" of casse/chasse is older than its first Middle French attestation in the fourteenth century. Presumably the Latin source capsa had developed more than one sense, all subsumable under the meaning "something holding or enclosing" in Gallo-Romance.

First Known Use

circa 1864, in the meaning defined above

Time Traveler
The first known use of chassis was circa 1864

Dictionary Entries Near chassis

Cite this Entry

“Chassis.” Dictionary, Merriam-Webster, Accessed 22 Jul. 2024.

Kids Definition


chas·​sis ˈshas-ē How to pronounce chassis (audio) ˈchas-ē How to pronounce chassis (audio)
plural chassis -ēz How to pronounce chassis (audio)
: a supporting frame (as that of the body of an automobile or airplane or the parts of a radio or television receiver)
Last Updated: - Updated example sentences
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