Chat ( Informal ) (6)
(Other definitions for natter that I've seen before include "Talk casually" , "Talk continually or annoyingly" , "Chat busily" , "Talk socially about nothing important" , "Chatter (colloq.)" .)
(Other definitions for confab that I've seen before include "Chat (colloquial)" , "Chatter" , "Chat (informal)" , "Informal discussion (colloq.)" , "jaw" .)