OO or oo may refer to:
Science and technology
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ʻŌʻō
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''Moho'' is a genus of extinct birds in the Hawaiian bird family, Mohoidae, that were endemic to the Hawaiian Islands. Members of the genus are known as ''ōō'' in the Hawaiian language. Their plumage was generally striking glossy bl ...
, an extinct bird of the genus ''Moho''
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Object-oriented programming
Object-oriented programming (OOP) is a programming paradigm based on the concept of " objects", which can contain data and code. The data is in the form of fields (often known as attributes or ''properties''), and the code is in the form of ...
, a computer programming paradigm
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O.O
An emoticon (, , rarely , ), short for "emotion icon", also known simply as an emote, is a pictorial representation of a facial expression using characters—usually punctuation marks, numbers, and letters—to express a person's feelings ...
(also O.o or o.O), an emoticon to represent two eyes and a nose or mouth
Transportation
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SkyWest Airlines
SkyWest Airlines is an American regional airline headquartered in St. George, Utah, United States. SkyWest is paid to staff, operate and maintain aircraft used on flights that are scheduled, marketed and sold by a partner mainline airline. The ...
(IATA code: OO)
* Belgium (
aircraft registration prefix
This is a list of aircraft registration prefixes used by civil aircraft:
Current (post-1928) allocations
The 1928 markings have been amended and added to over the years, with the current markings being:
Post-1928 table notes
Pre-1928 allocat ...
: OO)
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Old Oak Common TMD
Old Oak Common TMD was a traction maintenance depot located west of London Paddington, in Old Oak Common. The depot was the main facility for the storage and servicing of locomotives and multiple-units from Paddington. The depot codes were OC ...
, a carriage shed (Network Rail depot code: OO)
Places
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Oô, a commune in France
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Oo, Indonesia Oo is a populated place in the Central Sulawesi province of Indonesia.
References
Populated places in Central Sulawesi
{{CSulawesi-geo-stub ...
Art and entertainment
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''OO'' (EP), album by South Korean singer Zion.T
* OO, the production code for the 1967 ''Doctor Who'' serial ''
The Ice Warriors
''The Ice Warriors'' is the partly missing third serial of the fifth season of the British science fiction television series '' Doctor Who'', which was first broadcast in six weekly parts from 11 November to 16 December 1967.
In this serial, th ...
''
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"O.O" (song), a song by South Korean girl group
NMIXX
Other uses
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Oo (digraph), a digraph in orthography
* ‘O‘o stick, a traditional Hawaiian
digging bar
A digging bar is a long, straight metal bar used for various purposes, including as a post hole digger, to break up or loosen hard or compacted materials such as soil, rock, concrete and ice or as a lever to move objects. Known by other names de ...
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Original Oratory, a competitive event in high school forensic competitions
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Oakley, Inc. (NYSE stock ticker symbol: OO), subsidiary of Italian company Luxottica
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OO gauge
OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard-gauge model railway standard in the United Kingdom, outside of which it is virtually unknown. OO gauge is one of several 4 mm-scale standards (4 mm to 1 foot, ...
, a 1:76.2 modelling scale in model railroading
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Official Observer, an appointed amateur radio operator
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Orange Order
The Loyal Orange Institution, commonly known as the Orange Order, is an international Protestant fraternal order based in Northern Ireland and primarily associated with Ulster Protestants, particularly those of Ulster Scots people, Ulster Sco ...
, a protestant fraternal order based in Northern Ireland
See also
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Double-O, producer and half of hip-hop duo o in the Hallo
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Infinity symbol
The infinity symbol (\infty) is a mathematical symbol representing the concept of infinity. This symbol is also called a lemniscate, after the lemniscate curves of a similar shape studied in algebraic geometry, or "lazy eight", in the termin ...
(∞)
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00 (disambiguation)
00, a double zero, may refer to:
* '' '00'', album by the alternative rock band Judybats, released in 2000
*The year 1900
* The year 2000
*The year 2100
* 00 Agent, an agent with a license to kill in the ''James Bond'' media
* 00 gauge, a stand ...
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O0 (disambiguation)
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OOO (disambiguation)
OOO or Ooo may refer to:
Frequently used abbreviations
* OoO, an abbreviation for Out of Office, a phrase often used in professional contexts to indicate that someone is unavailable for work (usually because they are on vacation)
* ООО, a ...
*
ᅇ
The Korean alphabet, known as Hangul, . Hangul may also be written as following South Korea's standard Romanization. ( ) in South Korea and Chosŏn'gŭl in North Korea, is the modern official writing system for the Korean language. The let ...
, an obsolete unit of the Hangul alphabet
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0-0 (disambiguation)
* ⚭,
marriage
Marriage, also called matrimony or wedlock, is a culturally and often legally recognized union between people called spouses. It establishes rights and obligations between them, as well as between them and their children, and between t ...
symbol
{{disambiguation