confab vs chit-chat

confab and chit-chat both are nouns.

Word	Noun	Adjective	Verb	Adverb
confab	Yes	No	Yes	No
chit-chat	Yes	No	Yes	No

As nouns, chit-chat is a hyponym of confab; that is, chit-chat is a word with a more specific, narrower meaning than confab:

As verbs, confab and chit-chat are synonyms defined as:

confab and chit-chat: talk socially without exchanging too much information

confab (noun)	chit-chat (noun)
an informal conversation	light informal conversation for social occasions

confab (verb)	chit-chat (verb)
talk socially without exchanging too much information	talk socially without exchanging too much information
have a conference in order to talk something over