chitchat vs confab

chitchat and confab both are nouns.

Word	Noun	Adjective	Verb	Adverb
chitchat	Yes	No	Yes	No
confab	Yes	No	Yes	No

As nouns, confab is a hypernym of chitchat; that is, confab is a word with a broader meaning than chitchat:

Other hypernyms of chitchat include chat, confabulation, schmoose, schmooze.

As verbs, chitchat and confab are synonyms defined as:

chitchat and confab: talk socially without exchanging too much information

chitchat (noun)	confab (noun)
light informal conversation for social occasions	an informal conversation

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