chit-chat vs shmooze

chit-chat and shmooze both are nouns.

Word	Noun	Adjective	Verb	Adverb
chit-chat	Yes	No	Yes	No
shmooze	Yes	No	Yes	No

As verbs, shmooze is a hyponym of chit-chat; that is, shmooze is a word with a more specific, narrower meaning than chit-chat:

Other hyponyms of chit-chat include jawbone, schmoose, schmooze, shmoose.

chit-chat (noun)	shmooze (noun)
light informal conversation for social occasions	(Yiddish) a warm heart-to-heart talk

chit-chat (verb)	shmooze (verb)
talk socially without exchanging too much information	talk idly or casually and in a friendly way