II is the Roman numeral for 2.
II may also refer to:
Biology and medicine
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Image intensifier
An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light proce ...
, medical imaging equipment
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Invariant chain
HLA class II histocompatibility antigen gamma chain also known as HLA-DR antigens-associated invariant chain or CD74 (Cluster of Differentiation 74), is a protein that in humans is encoded by the ''CD74'' gene. The invariant chain (Abbreviated Ii ...
, a polypeptide involved in the formation and transport of MHC class II protein
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Optic nerve
In neuroanatomy, the optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual system, visual information from the retina to the brain. In humans, the optic nerve i ...
, the second cranial nerve
Economics
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Income inequality
In economics, income distribution covers how a country's total GDP is distributed amongst its population. Economic theory and economic policy have long seen income and its distribution as a central concern. Unequal distribution of income causes ...
Supertonic
In music, the supertonic is the second degree () of a diatonic scale, one whole step above the tonic. In the movable do solfège system, the supertonic note is sung as ''re''.
The triad built on the supertonic note is called the supertonic ...
, in music
* ''ii'', a 2018 song by
CHVRCHES
Chvrches (stylised CHVRCHΞS and pronounced "Churches") are a Scottish synth-pop band from Glasgow, formed in September 2011. The band consists of Lauren Mayberry, Iain Cook, Martin Doherty and, unofficially since 2018, Jonny Scott. Mostly deriv ...
Krux
KRUX (91.5 FM) is one of New Mexico State University's two radio stations, located in Las Cruces, New Mexico, United States. Student-run and operated, it airs an eclectic mix of musical genres. KRUX was the first non-commercial educational FM ...
TNGHT
TNGHT is a musical duo consisting of Scottish producer Hudson Mohawke and Canadian producer Lunice, formed in 2011. The duo released their self-titled debut EP to positive reviews in 2012. They announced an indefinite hiatus in late 2013, unt ...
Led Zeppelin II
''Led Zeppelin II'' is the second studio album by the English rock band Led Zeppelin, released on 22 October 1969 in the United States and on 31 October 1969 in the United Kingdom by Atlantic Records. Recording sessions for the album took place ...
* ''Ii'' is a Japanese surname, daimyō of Hikone:
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Ii clan
is a Japanese clan which originates in Tōtōmi Province. It was a retainer clan of the Imagawa clan, Imagawa family, and then switched sides to the Matsudaira clan of Mikawa Province at the reign of Ii Naotora. A famed 16th-century clan membe ...
, Japanese clan (Sengoku period)
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Ii Naomasa
was a general under the Sengoku period ''daimyō'', and later ''shōgun'', Tokugawa Ieyasu.Ii Naotora, female daimyō and foster mother of Naomasa
** Ii Naoyuki, a Japanese author
* John Papa ʻĪʻī, a Hawaiian noble
Other uses
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ii (digraph)
This is a list of digraphs used in various Latin alphabets. In the list, letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it would be in Danish, ...
, a digraph in certain romanized alphabets
* ii (IRC client), short for IRC It, an Internet Relay Chat client for Unix-like operating systems
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Ii, Finland
Ii (; ) is a municipality of Finland. It is situated by the Bothnian Bay, at the mouth of river Iijoki, and it is part of the Northern Ostrobothnia region. The municipality has a population of () and covers an area of of which is water. The ...
, a municipality of Finland
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Illegal immigrant
Illegal immigration is the migration of people into a country in violation of that country's immigration laws, or the continuous residence in a country without the legal right to do so. Illegal immigration tends to be financially upward, wi ...
(especially in Hong Kong and Macau vernacular)
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Index Islamicus Index Islamicus (, ) is a bibliography database of publications about Islam and the Muslim world, first compiled in 1956 by James Douglas Pearson. It is compiled by C.H. Bleaney & S. Sinclair and the School of Oriental and African Studies, London, ...
, a bibliography database of publications about Islam and the Muslim world
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Internet Infidels
Internet Infidels, Inc. is an American nonprofit educational organization founded in 1995 by Jeffery Jay Lowder and Brett Lemoine. Its mission is to use the Internet to promote a view that supernatural forces or entities do not exist (metaphysical ...
, a discussion forum
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IBC Airways
IBC Airways is an FAR Part 135 on-demand airline headquartered in unincorporated Broward County, Florida, United States, near Fort Lauderdale. IBC Airways operates on-demand cargo services to the Caribbean. Its main base is Miami Internationa ...
(IATA code: II)
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Yi language
The Loloish languages, also known as Yi (like the Yi people) and occasionally Ngwi or Nisoic, are a family of 50–100 Tibeto-Burman languages spoken primarily in the Yunnan province of Southwestern China. They are most closely related to Bur ...