[ chas-ee, -is, shas-ee ]
/ ˈtʃæs i, -ɪs, ˈʃæs i /
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noun, plural chas·sis [chas-eez, shas-]. /ˈtʃæs iz, ˈʃæs-/.
Automotive. the frame, wheels, and machinery of a motor vehicle, on which the body is supported.
Ordnance. the frame or railway on which a gun carriage moves backward and forward.
the main landing gear of an aircraft; that portion of the landing gear that supports an aircraft.
Radio and Television. a frame for mounting the circuit components of a radio or television set.
a construction forming the sides, top, and bottom of a cabinet, showcase, or the like.
Apostrophes can be tricky; prove you know the difference between "it’s" and "its" in this crafty quiz!
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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of chassis

1655–65; <French châssis frame; akin to chase2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use chassis in a sentence

British Dictionary definitions for chassis

/ (ˈʃæsɪ) /

noun plural -sis (-sɪz)
the steel frame, wheels, engine, and mechanical parts of a motor vehicle, to which the body is attached
electronics a mounting for the circuit components of an electrical or electronic device, such as a radio or television
the landing gear of an aircraft
obsolete a wooden framework for a window, screen, etc
the frame on which a cannon carriage moves backwards and forwards
slang the body of a person, esp a woman

Word Origin for chassis

C17 (meaning: window frame): from French châssis frame, from Vulgar Latin capsicum (unattested), ultimately from Latin capsa case ²
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