Chat"ter (?), v. i. [imp. & p. p. Chattered (?); p. pr. & vb. n. Chattering.] [Of imitative origin. Cf. Chat, v. i. Chitter.] 1. To utter sounds which somewhat resemble language, but are inarticulate and indistinct.

The jaw makes answer, as the magpie chatters.
Wordsworth.

2. To talk idly, carelessly, or with undue rapidity; to jabber; to prate.

To tame a shrew, and charm her chattering tongue.
Shak.

3. To make a noise by rapid collisions.

With chattering teeth, and bristling hair upright.
Dryden.

Chat"ter, v. t. To utter rapidly, idly, or indistinctly.

Begin his witless note apace to chatter.
Spenser.

Chat"ter, n. 1. Sounds like those of a magpie or monkey; idle talk; rapid, thoughtless talk; jabber; prattle.

Your words are but idle and empty chatter.
Longfellow.

2. Noise made by collision of the teeth, as in shivering.

• (countable) one who chats
  
• (uncountable) talk, especially meaningless or unimportant talk
  
• (uncountable) the sound of talking
  
• (uncountable) an intermittent noise, as from vibration
        Proper brake adjustment will help to reduce the chatter.
  
• To talk idly.
       They knitted and chattered the whole time.
  
• To make a chattering noise.