The Ultimate GRE Word List & Dictionary

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  • prevent (sb) from doing or achieving sth [Barron]
    1. to balk or defeat in an endeavor
    2. to induce feelings of discouragement in
transitive verb
  • to make (plans, efforts, etc.) worthless or of no avail; defeat; nullify: The student's indifference frustrated the teacher's efforts to help him [Webster]

More word meanings for frustrate
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frustrate @ wiktionary
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Merriam-Webster Online:
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MSN Encarta:
frustrate @ Encarta
American Heritage Dictionary of the English Language:
frustrate @ AHD provided by Yahoo! Education
frustrate @
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