RI
Look up
RI ,
R.I. ,
ri , or
ri- in Wiktionary, the free dictionary.
Look up
rí ,
rì ,
rî , or
-ri in Wiktionary, the free dictionary.
RI or ri may refer to:
People
Ri , a common Korean surname, a variant romanization of Lee
Rí (rig), an ancient Gaelic word meaning "king"
Ri (pronoun) , a gender-neutral pronoun in Esperanto
RI , an initialism of Rex Imperator (king-emperor) or Regina Imperatrix (queen-empress), used by those British monarchs who were rulers of both the United Kingdom and the Indian Empire
Places
Ri (administrative division) , an administrative unit in both North Korea and South Korea
Ri, Orne , a commune of the Orne département in France
RI, abbreviation of either the Republic of Indonesia or, in the Indonesian language, Republik Indonesia
Rhode Island , a state within the US (postal abbreviation RI)
Ri, an augmented second in solfege , used in music education
Ri, a representation of the second svara in Indian classical music
Russia Insider , a pro-Kremlin news and propaganda website
Businesses and organizations
Science, technology, and mathematics
Ri (prefix symbol) , a binary unit prefix symbol
Referential integrity , a database concept
Refractive index of an optical medium (in physics/optics) is a number that describes how light propagates through that medium
Arterial resistivity index , a measure of pulsatile blood flow
Ring Indicator , a signal in the RS232 serial communications standard
Rhombicosahedron , a polyhedron, by Bowers acronym
Residual income , a financial profitability measure of a company
Reputation Institute , a research and insights company that analyzes the reputation of corporations and places
Rapid intensification , a phenomenon in which the wind speed of a tropical cyclone increases dramatically in a short period of time
Research infrastructure , national or international infrastructure open to scientists (e.g. CERN)
Research institute , an establishment founded for doing research
Other uses
Ri (cuneiform) , a cuneiform sign
Ri (kana) , a Romanization of the Japanese kana り and リ
Ri , a unit of measurement in Japan and Korea related to the Chinese li
Rock Island District , a commuter rail line on Chicago's Metra (abbreviated as RI on maps and schedules)
See also
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