babble vs palaver

babble and palaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
babble	Yes	No	Yes	No
palaver	Yes	No	Yes	No

As verbs, palaver is a hypernym of babble; that is, palaver is a word with a broader meaning than babble:

Other hypernyms of babble include blab, blabber, chatter, clack, gabble, gibber, maunder, piffle, prate, prattle, tattle, tittle-tattle, twaddle.

babble (noun)	palaver (noun)
gibberish resembling the sounds of a baby	loud and confused and empty talk
	flattery intended to persuade

babble (verb)	palaver (verb)
to talk foolishly	have a lengthy discussion, usually between people of different backgrounds
divulge confidential information or secrets	influence or urge by gentle urging, caressing, or flattering
utter meaningless sounds, like a baby, or utter in an incoherent way	speak (about unimportant matters) rapidly and incessantly
flow in an irregular current with a bubbling noise