chat vs chatter

chat and chatter both are nouns.

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

As verbs, chat and chatter are synonyms defined as:

chat (noun)	chatter (noun)
songbirds having a chattering call	noisy talk
birds having a chattering call	the high-pitched continuing noise made by animals (birds or monkeys)
an informal conversation	the rapid series of noises made by the parts of a machine

chat (verb)	chatter (verb)
talk socially without exchanging too much information	speak (about unimportant matters) rapidly and incessantly
	talk socially without exchanging too much information
	make noise as if chattering away
	cut unevenly with a chattering tool
	click repeatedly or uncontrollably