chatter, jabber, babble, ramble, blather, prate, yammer, gab, waffle, twaddle
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Chatter refers to fast, often light or trivial talk, usually involving many short exchanges between people. It can describe friendly or casual conversation, such as people talking informally in a room or online. The word can also refer to background noise created by many voices or by machines, animals, or devices making repeated quick sounds. In technology or security contexts, it may describe frequent, sometimes low‑level communication, such as messages, signals, or online posts that indicate ongoing activity. Overall, chatter emphasizes rapid, continual, and sometimes unimportant or informal communication or sound.