- a frame on which the carriage of a cannon moves back and forth
- the frame or undercarriage of a motor vehicle, usually including the axles, suspension, etc. and sometimes the engine, drivetrain, etc.
- landing gear
- the metal frame on which the parts of an electronic device together with the circuits connecting them are mounted
- the assembled frame and parts
- Slang the body or figure, esp. of a woman
Origin of chassisFrench châssis: see chase