Dictionary of Meaning
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U
*** Shopping-Tip: U
{{AZ|uc=U|lc=u}}'''U''' is the twenty-first letter of the modern
Latin alphabet.
U was originally a positional variant of the letter
V, as
I was of
J, used only in lower-case writing and only medially, and representing both the vowels now written with U and the consonants now written with V. The use of the two forms to distinguish the consonants and vowels which they now represent was not standardised until modern times.
Codes for computing
{{Letter
|NATO=Uniform
|Morse=··–
|B1=â—?
|B2=â—‹
|B3=â—?
|B4=â—‹
|B5=â—‹
|B6=â—?
}}
In
Unicode the
majuscule capital U is codepoint U+0055 and the
minuscule lowercase u is U+0075.
The
ASCII code for capital U is 85 and for lowercase u is 117; or in
Binary numeral system binary 01010101 and 01110101, correspondingly.
The
EBCDIC code for capital U is 228 and for lowercase u is 164.
The
numeric character references in
HTML and
XML are "
U" and "
u" for upper and lower case respectively.
Meanings for U
* In
astronomy,
** U stands for the planet
Uranus; for example,
S/2001 U 2 was the second satellite of Uranus sighted in 2001,
Ferdinand (moon) Ferdinand.
** U stands for an October 16 through 31 discovery, in the provisional designation of a comet (e.g.
P/2005 U1, Comet Read 3) or asteroid (e.g.
(4425) 1967 UQ).
* In
biochemistry, U is the symbol for
uracil.
* In
calendars, U is often an abbreviation for
Sunday, for use when
S is being used for
Saturday.
* In
chemistry, U is the symbol for
uranium.
* In
communication, u is an abbreviation for the word "you" in
Short message service SMS or
instant messages.
* In
computing, 1 U (= 44 mm or 1.75 inch) is a standard unit of height of a piece of equipment or
chassis computer chassis in a
19-inch rack, also called a
rack unit (RU) or a
pizza box form factor pizza box.
* In
education, U is an unsatisfactory
grade (education) grade.
* In
electrical engineering, U is the symbol for
voltage.
* In
geosciences, U stands for the theoretical
geopotential, and ''U-shaped'' for
glaciated valley glaciated valleys
* In
history,
U of Goryeo U is king of
Goryeo (Korea).
* In
linguistics, U refers to speech markers of upper class British speakers. British novelist
Nancy Mitford brought to popular attention the linguistic terminology
U and non-U English "U" and "non-U" to indicate the speech markers of upper class and non-upper class British speakers respectively.
* In
Burmese language Burmese, U is an honorific roughly equal to
Mister.
* U also stands for the popular Shia name Umar as Umar is seen as too sacred to be said aloud.
* In
mathematics,
stands for
union (set theory) union and the upside-down
stands for
intersection (set theory) intersection (both are
operators on
sets). A U-set is a
set of uniqueness.
* In
mathematics, U stands for the
unitary group.
* In
metrology, u is the symbol for unified
atomic mass unit.
* In
military science, U- is a prefix used for
Germany German submarines during
World War II, (e.g.,
U-20), which was short for
Unterseeboot. They were also referred to as "U-boats" by the Allies.
* In
physics, U is the symbol for
potential energy.
* In the
Unicode standard, character code points are labelled "U+" followed by a number in hexadecimal.
*
University of Miami, owing to its distinctive split-U logo.
*
University of Utah or "U of U" (or just
University in general).
* In
Internet slang, "u" or "U" is referred to as "you" due to the similarity in pronunciation.
* In
Sports, U is also a common nickname for
Universitario de Deportes, one of the most popular
soccer teams in
Peru.
See also
*
Ù
*
Ú
*
Û
*
Ü
*
Ŭ
*
Å°
*
Å®
{{AZsubnav}}
Category:Vowels
Category:Latin letters
als:U
bs:U
ca:U
cs:U
da:U
de:U
el:U
eo:U
es:U
fi:U
fr:U (lettre)
gl:U
he:U
hr:U
it:U
ja:U
ko:U
kw:U
la:U
nl:U
nn:U
no:U
pl:U
pt:U
ro:U
simple:U
sl:U
sn:U
sv:U
vi:U
yo:U
zh:U
Unicode#Upluslink U+{{{1|}}}
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