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The current version of the vocabulary builder covers over 2720 words & is useful for students preparing for academic English examinations such as SAT, GRE, GMAT, etc. Now you can also listen to the pronunciation of words. - Refer a Friend.


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perturb (verb) worry or make anxious.

When something perturbs you, it worries you or upsets you. Your friend's ill health perturbs you if you are worried about it. Your doctor's indifference to your ill health perturbs you because you are worried about it. A son's lack of progress in education may perturb his father, if it worries them.

  • The appearance of police at that hour really perturbed him. It worried him greatly as they walked towards him.
  • The lack of improvement in her child's condition perturbed her a lot. In her anxiety she took him to specialist after specialist, only to know that it will take some more time.
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Last Modified : 11-May 2009
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