confabulation vs conversation

confabulation and conversation both are nouns.

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

As nouns, conversation is a hypernym of confabulation; that is, conversation is a word with a broader meaning than confabulation:

confabulation: an informal conversation
conversation: the use of speech for informal exchange of views or ideas or information etc.

confabulation (noun)	conversation (noun)
(psychiatry) a plausible but imagined memory that fills in gaps in what is remembered	the use of speech for informal exchange of views or ideas or information etc.
an informal conversation