U definition

yo͝o
Any of the speech sounds represented by the letter u.
noun
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5
The 21st letter of the modern English alphabet.
noun
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7
Unsatisfactory.
abbreviation
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2
The twenty-first letter of the English alphabet: formerly a variant of V, v; not until the 18th cent. was it established as a vowel symbol only.
noun
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2
The 21st in a series.
noun
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5
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Of the upper or wealthy class, esp. the British upper class, as characterized by supposedly definitive usages, accent, behavior, tastes, etc.
adjective
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2
Union.
abbreviation
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2
The definition of u refers to the upper class in Britain.

An example of people belonging to the u class are kings and queens.

adjective
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1
U is the 21st letter of the alphabet.

An example of u is the second letter in the word "cut."

noun
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1
Something shaped like the letter U.
noun
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1
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A grade that indicates an unsatisfactory status.
noun
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1
Up quark.
abbreviation
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1
(chiefly british) Of or appropriate to the upper class, especially in language usage.
adjective
1
1
Any of the speech sounds that this letter represents, as, in English, the vowel (u) of cut, () of bush, or () of rude, or the semivowel (w) of win.
noun
1
1
A type or impression for u or U.
noun
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1
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The twenty-first in a sequence or group.
noun
1
1
Atomic mass unit.
abbreviation
1
1
(slang) United States dollar.
abbreviation
1
1
An emoticon representing a smiley face or light laughter.
.
1
1
Abbreviation of uranium-235.
noun
1
1
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Alternative form of U.
abbreviation
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0
(computing) The ASCII control character negative acknowledgement in caret notation.
symbol
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0
Used as a courtesy title before the name of a man in a Burmese-speaking area.
noun
0
1
Uracil.
abbreviation
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1
An object shaped like U.
noun
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1
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Of u or U.
adjective
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1
Twenty-first in a sequence or group.
adjective
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1
Shaped like U.
adjective
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1
Unit(s)
abbreviation
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1
Uncle.
abbreviation
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1
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Uracil.
abbreviation
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1
symbol
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1
Uranium.
symbol
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1
A relatively slow, high-altitude, U.S. military reconnaissance jet equipped with sophisticated aerial cameras.
noun
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1
Uracil.
abbreviation
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1
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Abbreviation of uracil.
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1
In electricity, the symbol for potential energy difference, which is the work done to move a unit charge between two points in an electric field. In other words, the difference in voltage level between two points in an electric field.
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1
U interface or Reference Point U in ISDN. See Reference Point U.
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1
The twenty-first letter of the English alphabet, called u and written in the Latin script.

I prefer the u in Arial to the one in Times New Roman.

letter
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1
The name of the Latin-script letter U/u.
noun
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1
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A thing in the shape of the letter U.
noun
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1
(abbreviation, slang, text messaging, Internet) You (in text messaging and internet conversations)

Take me with u.

pronoun
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1
abbreviation
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1
The twenty-first letter of the English alphabet, called u and written in the Latin script.
letter
0
1
(British film certificate) Universal (suitable for all ages)
abbreviation
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1
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abbreviation
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1
abbreviation
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1
abbreviation
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1
abbreviation
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1
(chiefly UK) Characteristic of the upper classes, particularly in use of language.
adjective
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1
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A language belonging to the Austro-Asiatic language family which is spoken in China.
pronoun
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1
United.
abbreviation
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2
University.
abbreviation
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2

Other Word Forms

Noun

Singular:
u
Plural:
u.s.

Origin of u

  • U(nion of Orthodox Hebrew Congregations)

    From Webster's New World College Dictionary, 5th Edition

  • u(pper class)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Burmese

    From American Heritage Dictionary of the English Language, 5th Edition

  • 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

  • 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 (u, “ur"), derived from Raetic letter u.

    From Wiktionary

  • U the elemental symbol for uranium + 235 the atomic mass of this isotope.

    From Wiktionary

  • The initial vowel of human

    From Wiktionary