jabber vs talk

jabber and talk both are nouns.

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

As verbs, talk is a hypernym of jabber; that is, talk is a word with a broader meaning than jabber:

Other hypernyms of jabber include mouth, speak, utter, verbalise, verbalize.

jabber (noun)	talk (noun)
rapid and indistinct speech	the act of giving a talk to an audience
	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')

jabber (verb)	talk (verb)
talk in a noisy, excited, or declamatory manner	express in speech
	exchange thoughts; talk with
	reveal information
	use language
	deliver a lecture or talk
	divulge confidential information or secrets