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Meaning of undersign

un•der•sign

Pronunciation: (un"dur-sīn', un'dur-sīn"), [key]
— v.t.
  1. to sign one's name under or at the end of (a letter or document); affix one's signature to.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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