gibber vs tittle-tattle

gibber and tittle-tattle both are nouns.

Word	Noun	Adjective	Verb	Adverb
gibber	Yes	No	Yes	No
tittle-tattle	Yes	No	Yes	No

As verbs, gibber and tittle-tattle are synonyms defined as:

gibber and tittle-tattle: speak (about unimportant matters) rapidly and incessantly

Other synonyms of gibber include blab, blabber, chatter, clack, gabble, maunder, palaver, piffle, prate, prattle, tattle, twaddle.

gibber (noun)	tittle-tattle (noun)
unintelligible talking	light informal conversation for social occasions

gibber (verb)	tittle-tattle (verb)
speak (about unimportant matters) rapidly and incessantly	speak (about unimportant matters) rapidly and incessantly
chatter inarticulately; of monkeys