confab vs natter

confab is a noun but natter is not a noun.

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

As verbs, confab and natter are synonyms defined as:

confab and natter: talk socially without exchanging too much information

confab (noun)	natter (noun)
an informal conversation

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