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U's'

 - 1 dictionary result
u 1 or U   (yōō)   
n.   pl. u's or U's also us or Us
  1. The 21st letter of the modern English alphabet.

  2. Any of the speech sounds represented by the letter u.

  3. The 21st in a series.

  4. Something shaped like the letter U.

  5. U A grade that indicates an unsatisfactory status.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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