jaw vs chuck

jaw and chuck both are nouns.

Word	Noun	Adjective	Verb	Adverb
jaw	Yes	No	Yes	No
chuck	Yes	No	Yes	No

jaw (noun)	chuck (noun)
holding device consisting of one or both of the opposing parts of a tool that close to hold an object	a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill
the part of the skull of a vertebrate that frames the mouth and holds the teeth	the part of a forequarter from the neck to the ribs and including the shoulder blade
the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth	informal terms for a meal

jaw (verb)	chuck (verb)
talk socially without exchanging too much information	eject the contents of the stomach through the mouth
censure severely or angrily	throw carelessly
talk incessantly and tiresomely	pat or squeeze fondly or playfully, especially under the chin
chew (food); to bite and grind with the teeth	throw away