u | Definition of u in English at AdvanceDictionary.com

Definition of U in English :

U

Noun

a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

uracil

a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

3. u

the 21st letter of the Roman alphabet

Adjective

4. u

(chiefly British) of or appropriate to the upper classes especially in language use

WordNet Lexical Database for English. Princeton University. 2010.

U

see synonyms of u

nounWord forms: plural u's, U's or Us

1.

the 21st letter and fifth vowel of the modern English alphabet

2.

any of several speech sounds represented by this letter, in English as in mute, cut, hurt, sure, pull, or minus

3.

a.

something shaped like a U

b.

(in combination)

a U-bolt

a U-turn

symbol for

1.

united

2.

unionist

3.

university

4. (in Britain)

a.

universal (used to describe a category of film certified as suitable for viewing by anyone)

b.

(as modifier)

a U film

5. chemistry

uranium

6. biochemistry

uracil

abbreviation for

7. text messaging

you

adjective

8. British old-fashioned, informal

(esp of language habits) characteristic of or appropriate to the upper class

Compare non-U

noun

a Burmese title of respect for men, equivalent to Mr

abbreviation for

1. mathematics

union

2.

unit

3.

united

4.

university

5.

upper

U

see synonyms of u

adjective Informal

of the upper or wealthy class, esp. the British upper class, as characterized by supposedly definitive usages, accent, behavior, tastes, etc.

1.

uncle

2.

Union

3.

United

4.

University

5.

uracil

kosher (sense 1)

often enclosed in a circle (Ⓤ)

uranium

nounWord forms: plural U's or u's

1.

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

2.

any of the speech sounds that this letter represents, as, in English, the vowel ( (ʌ) ; u) ) of cut, ( (ʊ) ; oo) ) of bush, or ( (u) ; o̅o) ) of rude, or the semivowel (w) of win

3.

a type or impression for u or U

4.

the twenty-first in a sequence or group

5.

an object shaped like U

adjective

6.

of u or U

7.

twenty-first in a sequence or group

8.

shaped like U

1.

atomic mass unit

2.

unit(s)

U

see synonyms of u

adj.

Chiefly British Of or appropriate to the upper class, especially in language usage.

n. pl. u's or U's also us or Us

1. The 21st letter of the modern English alphabet.

2. Any of the speech sounds represented by the letter u.

3. The 21st in a series.

4. Something shaped like the letter U.

5. U A grade that indicates an unsatisfactory status.

n.

Used as a courtesy title before the name of a man in a Burmese-speaking area.

abbr.

up quark

1. The symbol for uranium.

2. The symbol for internal energy.

abbr.

1. unsatisfactory

2. uracil

U

Noun

Adjective

U

U

U

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