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undermines
1 dictionary results for: undermines
American Heritage Dictionary - Cite This Source - Share This
un·der·mine       (ŭn'dər-mīn')  Pronunciation Key 
tr.v.   un·der·mined, un·der·min·ing, un·der·mines
  1. To weaken by wearing away a base or foundation: Water has undermined the stone foundations.
  2. To weaken, injure, or impair, often by degrees or imperceptibly; sap: Late hours can undermine one's health.
  3. To dig a mine or tunnel beneath.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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