Bribe (informal) (8)
(Other definitions for backhander that I've seen before include "Swipe" , "court action" , "Bribe (in court?)" , "strike" , "Bribe - tennis stroke" .)
(Other definitions for kickback that I've seen before include "Underhand payment" , "Recoil; illicit payment" , "strong reaction" , "Commercial bribe paid by a seller to a purchaser as an inducement to buy" , "Bribe - recoil" .)