chit chat vs gossip

chit chat and gossip both are nouns.

Word	Noun	Adjective	Verb	Adverb
chit chat	Yes	No	No	No
gossip	Yes	No	Yes	No

As nouns, chit chat and gossip are synonyms defined as:

chit chat (noun)	gossip (noun)
light informal conversation for social occasions	light informal conversation for social occasions
	a report (often malicious) about the behavior of other people
	a person given to gossiping and divulging personal information about others

chit chat (verb)	gossip (verb)
	wag one's tongue; speak about others and reveal secrets or intimacies
	talk socially without exchanging too much information