- 1[intransitive, transitive] babble (away/on) (something) to talk quickly in a way that is difficult to understand They were all babbling away in a foreign language. I realized I was babbling like an idiot.
- 2[intransitive] to make the sound of water flowing over rocks, like a stream a babbling brook
NAmE//ˈbæbl//Verb Forms present simple I / you / we / they babble
he / she / it babbles
past simple babbled
-ing form babbling