U 1 [ ju: ]
(also u )
■ noun ( plural Us or U's )
1》 the twenty-first letter of the alphabet.
2》 denoting the next after T in a set of items, categories, etc.
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U 2 [ ju: ]
■ abbreviation
1》 (in names of sports clubs) United.
2》 Brit. universal (denoting films classified as suitable without restriction).
3》 Uruguay (international vehicle registration).
■ symbol the chemical element uranium.
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U 3 [ ju: ]
■ adjective Brit. informal (of language or social behaviour) characteristic of or appropriate to the upper social classes.
Origin
1954: abbrev. of upper class ; coined by Alan S. C. Ross, professor of linguistics, and popularized by Nancy Mitford's Noblesse Oblige (1956).
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U 4 [ u: ]
■ noun a Burmese title of respect before a man's name, equivalent to Mr.