gibber vs talk

gibber and talk both are nouns.

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

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

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

gibber (noun)	talk (noun)
unintelligible talking	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')

gibber (verb)	talk (verb)
speak (about unimportant matters) rapidly and incessantly	express in speech
chatter inarticulately; of monkeys	exchange thoughts; talk with
	reveal information
	use language
	deliver a lecture or talk
	divulge confidential information or secrets