chatter vs chat

chatter and chat both are nouns.

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

As verbs, chatter and chat are synonyms defined as:

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

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