Dictionary of Meaning
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U
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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 capital U is codepoint U+0055 and the lowercase u is U+0075.
The ASCII code for capital U is 85 and for lowercase u is 117; or in Binary numeral system 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 " &" and " &" for upper and lower case respectively.
Meanings for U
- In astronomy,
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 or Short message service 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 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).
- In electrical engineering, U is the symbol for voltage.
- In geosciences, U stands for the theoretical geopotential, and U-shaped for glaciated valleys
- In history, U of Goryeo is king of U of Goryeo 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, 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 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®
U+
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