confabulate vs confab

confabulate is not a noun while confab is a noun.

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

As verbs, confabulate and confab are synonyms defined as:

confabulate and confab: talk socially without exchanging too much information

As verbs, confabulate and confab are synonyms defined as:

confabulate and confab: have a conference in order to talk something over

Other synonyms of confabulate include confer, consult.

confabulate (noun)	confab (noun)
	an informal conversation

confabulate (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	have a conference in order to talk something over
unconsciously replace fact with fantasy in one's memory