noun Talk, especially meaningless or unimportant talk.
noun The sound of talking.
noun The vocalisations of a Eurasian magpie, Pica pica.
noun The vocalisations of various birds or other animals.
noun An intermittent noise, as from vibration.
Proper brake adjustment will help to reduce the chatter.
noun In national security, the degree of communication between suspect groups and individuals, used to gauge the degree of expected terrorist activity.
The NSA is concerned about increased chatter between known terror groups.
noun The situation where a drill or similar tool vibrates and tears the material rather than cutting it cleanly.