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definitions
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doesn't

[duhz-uh nt]
  1. contraction of does not.
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Usage note

Pronunciation note

See isn't.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for doesn't

1690s, contraction of does not.

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Online Etymology Dictionary, © 2010 Douglas Harper