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WordReference Random House Learner's Dictionary of American English © 2024U, u /yu/USA pronunciation n. [countable], pl. U's or Us, u's or us. - Linguisticsthe 21st letter of the English alphabet, a vowel.
U., an abbreviation of:- union.
- unit.
- university.
- unsatisfactory.
WordReference Random House Unabridged Dictionary of American English © 2024U, u (yo̅o̅),USA pronunciation n., pl. U's or Us, u's or us. - the 21st letter of the English alphabet, a vowel.
- any spoken sound represented by the letter U or u, as in music, rule, curious, put, or jug.
- something having the shape of aU.
- a written or printed representation of the letter U or u.
- a device, as a printer's type, for reproducing the letter U or u.
U (yo̅o̅),USA pronunciation pronoun. Pron. Spelling.- British Termsyou:Shoes Fixed While U Wait.
U (yo̅o̅),USA pronunciation adj. [Informal.]- characteristic of or appropriate to the upper class, esp. of Great Britain.
U (o̅o̅),USA pronunciation n. - a Burmese title of respect applicable to a man: used before the proper name.
U, Symbol.- Abbreviations(on a packaged product) certified as kosher by the Union of Orthodox Hebrew Congregations.
- the 21st in order or in a series, or, when I is omitted, the 20th.
- Chemistryuranium.
- Biochemistryuracil.
- [Thermodynam.]See internal energy.
- British Terms, Show Businessa designation for motion pictures determined as being acceptable for viewing by all age groups. Cf. A (def. 11), X (def. 9).
U., - uncle.
- and.
- uniform.
- union.
- unit.
- united.
- university.
- unsatisfactory.
- upper.
u., - and.
- uniform.
- unit.
- unsatisfactory.
- upper.
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