chatter vs schmooze

chatter and schmooze both are nouns.

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

As verbs, schmooze is a hyponym of chatter; that is, schmooze is a word with a more specific, narrower meaning than chatter:

Other hyponyms of chatter include jawbone, schmoose, shmoose, shmooze.

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

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