chassis

noun

chas·​sis ˈcha-sē  ˈsha-sē 

 also  ˈcha-səs

plural chassis ˈcha-sēz 

ˈsha-sēz

: 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

Roborock Qrevo Curv 2 Pro Just like the original Roborock Qrevo Curv that debuted at last year’s IFA, the Roborock Qrevo Curv 2 Pro has wheels that can lift the robot's chassis high enough to clear obstacles and thresholds. —PC Magazine, 6 Sep. 2025

Each of the coachbuilt V-12s has an all-new aluminum space frame chassis, makes extensive use of wood trim, and comes with its own custom timepiece that doubles as a watch. —Bryan Hood, Robb Report, 4 Sep. 2025

The chassis benefits from parts from a different Civic—the Type-R hot hatch. —Andrew Cunningham, ArsTechnica, 4 Sep. 2025

The transformer upgrades in both the A15+ and A25+ amplifiers reduce unwanted current within the chassis. —Mark Sparrow, Forbes.com, 3 Sep. 2025

Word History

Etymology

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

Rhymes for chassis

• assay
• bassi
• brassey
• brassy
• cassie
• classy
• gassy
• glassy
• grassy
• lassie
• massy
• sassy

Kids Definition

chassis

noun

chas·​sis ˈshas-ē  ˈchas-ē 

plural chassis -ēz 

: a supporting frame (as that of the body of an automobile or airplane or the parts of a radio or television receiver)