talk vs shmooze

talk and shmooze both are nouns.

Word	Noun	Adjective	Verb	Adverb
talk	Yes	No	Yes	No
shmooze	Yes	No	Yes	No

As nouns, shmooze is a hyponym of talk; that is, shmooze is a word with a more specific, narrower meaning than talk:

talk (noun)	shmooze (noun)
the act of giving a talk to an audience	(Yiddish) a warm heart-to-heart talk
an exchange of ideas via conversation
idle gossip or rumor
a speech that is open to the public
discussion; (`talk about' is a less formal alternative for `discussion of')

talk (verb)	shmooze (verb)
express in speech	talk idly or casually and in a friendly way
exchange thoughts; talk with
reveal information
use language
deliver a lecture or talk
divulge confidential information or secrets