To utter words indistinctly or unintelligibly; to utter inarticulate sounds

“The men were babbling, so we couldn't make sense of anything.”

To talk incoherently; to utter meaningless words.

To talk too much; to chatter; to prattle.

A stage in child language acquisition, during which an infant appears to be experimenting with uttering sounds of language, but not yet producing any recognizable words

Sounds produced by infant during the babbling period

Idle senseless talk; prattle.