The term DECISIVELY DEFEAT can be broken down into seven crossword solutions: TROMP (5 letters), ROUT (4 letters), DRUB (4 letters), WHOP (4 letters), STOMP (5 letters), SHELLAC (7 letters), and WHUP (4 letters). All of these words are verbs that mean to defeat someone or something decisively. TROMP, ROUT, DRUB, WHOP, STOMP, and WHUP all imply a physical action, while SHELLAC implies a figurative action. All of these words can be used to describe a decisive victory over an opponent.