ಉದಾಹರಣೆ : What ultimately frustrated every challenger was Ruth's amazing September surge.
Foil your opponent.

ಸಮಾನಾರ್ಥಕ : baffle, bilk, cross, foil, queer, scotch, spoil, thwart

ಉದಾಹರಣೆ : The children tormented the stuttering teacher.

ಸಮಾನಾರ್ಥಕ : bedevil, crucify, dun, rag, torment