chatter vs shmoose

chatter is a noun but shmoose is not a noun.

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

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

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

chatter (noun)	shmoose (noun)
noisy talk
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)	shmoose (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