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non-U

[ non-yoo ]
/ nɒnˈyu /
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adjective
not characteristic of or appropriate to the upper class, especially of Great Britain: certain words and phrases that are considered absolutely non-U.
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ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
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Question 1 of 8
Which of the following words describes “sky blue”?
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Origin of non-U

non- + U (adj.)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use non-U in a sentence

British Dictionary definitions for non-U

non-U
/ (nɒnˈjuː) /

adjective British informal
(esp of language) not characteristic of or used by the upper classCompare U 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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