U Definition
(computing) The ASCII control character negative acknowledgement in caret notation.
(abbreviation, slang, text messaging, Internet) You (in text messaging and internet conversations)
A language belonging to the Austro-Asiatic language family which is spoken in China.
Origin of U
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Before the 1700s, the pointed form v was written at the beginning of a word, while a rounded form u was used elsewhere, regardless of sound. So whereas valor and excuse appeared as in modern printing, have and upon were printed haue and vpon. Eventually, in the 1700s, to differentiate between the consonant and vowel sounds, the v form was used to represent the consonant, and u the vowel sound. v then preceded u in the alphabet, but the order has since reversed.
From Wiktionary
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From Middle English lower case letter v (also written u), from Old English lower case u, from 7th century replacement by lower case u of the Anglo-Saxon Futhorc letter ᚢ (u, “ur"), derived from Raetic letter u.
From Wiktionary
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U the elemental symbol for uranium + 235 the atomic mass of this isotope.
From Wiktionary
U(nion of Orthodox Hebrew Congregations)
From Webster's New World College Dictionary, 5th Edition
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The initial vowel of human
From Wiktionary
u(pper class)
From American Heritage Dictionary of the English Language, 5th Edition
Burmese
From American Heritage Dictionary of the English Language, 5th Edition
