Converse (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">converse</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that chat is a type of converse)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for chat that I've seen before include "Bird - talk easily" , "Talk easily; songbird" , "tittle-tattle" , "Communication" , "Casual conversation" .)
(Other definitions for talk that I've seen before include "Chat" , "Conversation" , "Discussion" , "that's said to be cheap" , "Gas" .)