confab vs confabulation

confab and confabulation both are nouns.

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

As nouns, confab and confabulation are synonyms defined as:

Other synonyms of confab include chat, schmoose, schmooze.

confab (noun)	confabulation (noun)
an informal conversation	(psychiatry) a plausible but imagined memory that fills in gaps in what is remembered
	an informal conversation

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