U

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U (u) is the twenty-first (number 21) letter in the English alphabet. It is pronounced "yoo".

 Meanings for U 
 On calendars, U is most times a short letter for Sunday, for use when S is being used for Saturday.
 In chemistry, U is the symbol for uranium.
 Sometimes used as a short form of "you".
 It is the seventh letter on the QWERTY keyboard.

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Category:Vowel letters