n. 25B6; verb their escape attempt was foiled : THWART, frustrate, counter, baulk, impede, obstruct, hamper, hinder, snooker, cripple, scotch, derail, smash; stop, block, prevent, defeat; informal do for, put paid to, stymie, cook someone's goose; Brit. informal scupper, nobble, queer, put the mockers on.
assist.