confabulation vs chat

confabulation and chat both are nouns.

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

As nouns, confabulation and chat are synonyms defined as:

Other synonyms of confabulation include confab, schmoose, schmooze.

confabulation (noun)	chat (noun)
(psychiatry) a plausible but imagined memory that fills in gaps in what is remembered	songbirds having a chattering call
an informal conversation	birds having a chattering call
	an informal conversation

confabulation (verb)	chat (verb)
	talk socially without exchanging too much information