Source : Webster's Revised Unabridged Dictionary (1913)

Chat \Chat\, v. i. [imp. & p. p. {Chatted}; p. pr. & vb. n.
   {Chatting}.] [From {Chatter}. [root]22.]
   To talk in a light and familiar manner; to converse without
   form or ceremony; to gossip. --Shak.

         To chat a while on their adventures.     --Dryden.

   Syn: To talk; chatter; gossip; converse.

Source : WordNet®

chatting
     See {chat}

chat
     n 1: an informal conversation [syn: {confab}, {confabulation}, {schmooze},
           {schmoose}]
     2: birds having a chattering call [syn: {New World chat}]
     3: songbirds having a chattering call [syn: {Old World chat}]
     [also: {chatting}, {chatted}]

chat
     v : talk socially without exchanging too much information; "the
         men were sitting in the cafe and shooting the breeze"
         [syn: {chew the fat}, {shoot the breeze}, {confabulate},
         {confab}, {chitchat}, {chatter}, {chaffer}, {natter}, {gossip},
          {jaw}, {claver}, {visit}]
     [also: {chatting}, {chatted}]