jawbone vs chat

jawbone and chat both are nouns.

Word	Noun	Adjective	Verb	Adverb
jawbone	Yes	No	Yes	No
chat	Yes	No	Yes	No

As verbs, chat is a hypernym of jawbone; that is, chat is a word with a broader meaning than jawbone:

jawbone (noun)	chat (noun)
the jaw in vertebrates that is hinged to open the mouth	songbirds having a chattering call
	birds having a chattering call
	an informal conversation

jawbone (verb)	chat (verb)
talk idly or casually and in a friendly way	talk socially without exchanging too much information