English dictionaryblabber noun Copy definition Share Print / Save as PDFPronunciation ˈblæb.ə(ɹ)Parts of speech noun verbDefinitionsnounone who reveals confidential information to the police or other authorityverbspeak (about unimportant matters) rapidly and incessantlySynonyms informer betrayer rat squealer chatter piffle palaver prate twaddle clack maunder prattle blab gibber tattle gabble