Ra is the Sun-god of Ancient Egypt. Ra or RA may also refer to:

Arts and entertainment

Film and television

Ra (Stargate) Over its decade of existence, science fiction TV series ''Stargate SG-1'' developed an extensive and detailed backdrop of diverse characters. Many of the characters are members of alien species discovered while exploring the galaxy through the S ...

, a character from the film ''Stargate'', based on the Egyptian god * ''Ra'' (1972 film), a 1972 documentary film about Thor Heyerdahl's expeditions * ''Ra'' (2014 film), a Tamil fantasy film

Gaming

* '' Rocket Arena'', a ''Quake'' mod * '' Command & Conquer: Red Alert'', a game

Music

* A half-step below Re on the

solfège In music, solfège (, ) or solfeggio (; ), also called sol-fa, solfa, solfeo, among many names, is a music education method used to teach aural skills, Pitch (music), pitch and sight-reading of Western classical music, Western music. Solfège is ...

musical scale

Performers

Ra (American band) Ra is an American alternative metal band from Los Angeles, taking their name from the Ra, Egyptian sun god, Ra. The band was formed in 1996, and took off around 2002, when their song "Do You Call My Name" from their album ''From One'' was relea ...

, an American rock band * Ra (artist), the pseudonym of Raoul Sinier, a French digital painter and electronic musician *

R.A. the Rugged Man R.A. Thorburn, better known by his stage name R.A. the Rugged Man, is an American rapper and producer. He began his music career at age 12, building a reputation locally for his lyrical skills. Thorburn signed with major label Jive Records at ...

(born c. 1974), American rapper *

Sun Ra Le Sony'r Ra (born Herman Poole Blount, May 22, 1914 – May 30, 1993), better known as Sun Ra, was an American jazz composer, bandleader, piano and synthesizer player, and poet known for his experimental music, "cosmic" philosophy, prolific out ...

(1914–1993), American jazz musician and philosopher *

Rise Against Rise Against is an American punk rock band from Chicago, formed in 1999. The group's current line-up comprises vocalist/rhythm guitarist Tim McIlrath, lead guitarist Zach Blair, bassist Joe Principe and drummer Brandon Barnes. Rooted in hardcor ...

, an American punk/hardcore band

Albums

* ''Ra'' (Utopia album), 1977 * ''Ra'' (Eloy album), 1988

Songs

* "Ra", a song by Northlane from ''

Node In general, a node is a localized swelling (a "knot") or a point of intersection (a vertex). Node may refer to: In mathematics *Vertex (graph theory), a vertex in a mathematical graph *Vertex (geometry), a point where two or more curves, lines, ...

'', 2015 *

Ra (Inna song) "Ra" (stylized in all caps) is a song recorded by Romanian singer Inna, digitally released on 27 September 2018 as the lead single from her sixth studio album, '' Yo'' (2019), by Global Records. It was entirely written in Spanish by Cristina Mar ...

, 2018

Other media

Ra (board game) ''Ra'' is a board game for two to five players designed by Reiner Knizia and themed around Ra, the sun-god of Heliopolis in ancient Egyptian culture. It is one of three auction games designed by Knizia, the others being ''Medici'' and ''Modern ...

, a board game for two to five players designed by Reiner Knizia and based on ancient Egyptian culture * ''

Resident Advisor ''Resident Advisor'' (also known as ''RA'') is an online music magazine and community platform dedicated to showcasing electronic music, artists and events across the globe. It was established in 2001. ''RA''s editorial team provides news, musi ...

'', an online magazine

Businesses and organizations

Academia

* Resource Academia, an academic institution in Lahore, Pakistan *

Roosevelt Academy University College Roosevelt (UCR), formerly known as Roosevelt Academy (RA), is a small, honors undergraduate liberal arts and science college located in Middelburg in the Netherlands and the sole university in Zeeland. It offers a residentia ...

, a college in the Netherlands *

Royal Academy of Arts The Royal Academy of Arts (RA) is an art institution based in Burlington House on Piccadilly in London. Founded in 1768, it has a unique position as an independent, privately funded institution led by eminent artists and architects. Its purpo ...

, in London, UK **

Royal Academician The Royal Academy of Arts (RA) is an art institution based in Burlington House on Piccadilly in London. Founded in 1768, it has a unique position as an independent, privately funded institution led by eminent artists and architects. Its pur ...

, one of the 80 practicing artists elected as a member of the Royal Academy *

Resident assistant A resident assistant (RA), also known by a variety of other names, is a trained peer leader who coordinates activities in residence halls in colleges and universities, mental health and substance abuse residential facilities, or similar establishm ...

, a student leader

Government, military, and political organizations

Regular Army A regular army is the official army of a state or country (the official armed forces), contrasting with irregulars, irregular forces, such as volunteer irregular militias, private armies, mercenary, mercenaries, etc. A regular army usually has the ...

, the permanent force of an army that is maintained during peacetime *

Regulatory affairs Regulatory affairs (RA), also called government affairs, is a profession within regulated industries, such as pharmaceuticals, medical devices, cosmetics, agrochemicals (plant protection products and fertilizers), energy, banking, telecom etc. Reg ...

, a department in charge of industry-government relations *

Provisional Irish Republican Army The Irish Republican Army (IRA; ), also known as the Provisional Irish Republican Army, and informally as the Provos, was an Irish republican paramilitary organisation that sought to end British rule in Northern Ireland, facilitate Irish reun ...

, an Irish nationalist terrorist group *

Resettlement Administration The Resettlement Administration (RA) was a New Deal U.S. federal agency created May 1, 1935. It relocated struggling urban and rural families to communities planned by the federal government. On September 1, 1937, it was succeeded by the Farm Se ...

, a New Deal government program in the United States *

Royal Artillery The Royal Regiment of Artillery, commonly referred to as the Royal Artillery (RA) and colloquially known as "The Gunners", is one of two regiments that make up the artillery arm of the British Army. The Royal Regiment of Artillery comprises t ...

, a regiment of the British Army

Other businesses and organizations

Ramblers' Association The Ramblers is the trading name of the Ramblers Association, Great Britain's leading walking charity. The Ramblers is also a membership organisation with around 100,000 members and a network of volunteers who maintain and protect the path ...

, a UK organisation for walkers *

Registration authority Registration authorities exist for many standards organizations, such as ANNA (Association of National Numbering Agencies for ISIN), the Object Management Group, W3C, IEEE and others. In general, registration authorities all perform a similar func ...

, a body which maintains lists of international standards codes *

Rowing Australia Rowing Australia (RA) is the governing body for the sport of rowing in Australia. Established in 1925, it is the only organisation recognised by the Federation Internationale des Societies d’Aviron (FISA), the Australian Sports Commission (A ...

, governing body for the sport of rowing in Australia *

Road America Road America is a motorsport road course located near Elkhart Lake, Wisconsin, United States on Wisconsin Highway 67. It has hosted races since the 1950s and currently hosts races in the NASCAR Cup and Xfinity Series, WeatherTech SportsCar Champ ...

, which uses the logo "RA"; a racetrack in Wisconsin, USA *

Nepal Airlines Nepal Airlines Corporation ( ne, नेपाल वायुसेवा निगम, Nepāl Vāyusevā Nigam, Nepal Air Service Corporation), formerly known as Royal Nepal Airlines ( ne, शाही नेपाल वायुसेवा, ...

(IATA code RA)

Linguistics

* Ra (Javanese) (ꦫ), a letter in the Javanese script *

Ra (kana) Ra (hiragana: ら; katakana: ラ) is one of the Japanese kana, which each represent one mora. Both versions are written with two strokes and have origins in the character 良; both characters represent the sound . The Ainu language uses a small ...

, the Japanese kana ら and ラ * ረ and ራ, Amharic letters that can be read as variations of ''ra'', also related to the Semitic resh *

Resh Resh is the twentieth Letter (alphabet), letter of the Semitic abjads, including Phoenician alphabet, Phoenician Rēsh , Hebrew alphabet, Hebrew Rēsh , Aramaic alphabet, Aramaic Rēsh , Syriac alphabet, Syriac Rēsh ܪ, and Arabic script, Arabic ...

or ''rāʾ'', 10th letter of Arabic alphabet * Ռ or ''ṙa'', the 28th letter in the

Armenian alphabet The Armenian alphabet ( hy, Հայոց գրեր, ' or , ') is an alphabetic writing system used to write Armenian language, Armenian. It was developed around 405 AD by Mesrop Mashtots, an Armenian linguist and wikt:ecclesiastical, ecclesiast ...

* र, ड़', ढ़, and र्ह,

Devanagari Devanagari ( ; , , Sanskrit pronunciation: ), also called Nagari (),Kathleen Kuiper (2010), The Culture of India, New York: The Rosen Publishing Group, , page 83 is a left-to-right abugida (a type of segmental Writing systems#Segmental syste ...

letters which can be called ''ra'', ''ṛa'' or ''rha'' * Ԗ, the 23rd letter ''rha'' («ра») in the older (1924−1927)

Moksha language Moksha ( mdf, мокшень кяль, translit=mokšeň käľ, label=none, ) is a Mordvinic language of the Uralic family, with around 130,000 native speakers in 2010. Moksha is the majority language in the western part of Mordovia. Its closes ...

Cyrillic script * ர and ற,

Tamil Tamil may refer to: * Tamils, an ethnic group native to India and some other parts of Asia ** Sri Lankan Tamils, Tamil people native to Sri Lanka also called ilankai tamils **Tamil Malaysians, Tamil people native to Malaysia * Tamil language, nati ...

letters articulated as ''ra'', ''tra'' or ''dra'' depending on the consonant complex

Places

Ra (island) Rah or Ra is a small coral islet of , located in the Banks group of northern Vanuatu. The same name also refers to the single village which is situated within this islet. There are massive rocks on the island. The islet of Rah is situated off the ...

(or ''Rah''), a small island of Vanuatu *

Ra Province Ra is one of the fourteen provinces of Fiji. Occupying the northern area of Viti Levu, the largest island, it is one of eight Viti Levu-based Provinces. With a land area of 1341 square kilometers, it had a population of 30,432 at the 2017 census. ...

in Fiji ** Ra (Fijian Communal Constituency, Fiji) ** Ra (Open Constituency, Fiji) *

Republic of Armenia A republic () is a "state in which power rests with the people or their representatives; specifically a state without a monarchy" and also a "government, or system of government, of such a state." Previously, especially in the 17th and 18th c ...

Rawlins County, Kansas Rawlins County (standard abbreviation: RA) is a county located in the U.S. state of Kansas. As of the 2020 census, the county population was 2,561. The largest city and county seat is Atwood. It was named after Union Civil War General John Aar ...

, of which the largest city is Atwood

Religion and mythology

* Ra, the Sun-god of Ancient Egypt * Rå, a creature in Scandinavian mythology * Rā, a

Māori Māori or Maori can refer to: Relating to the Māori people * Māori people of New Zealand, or members of that group * Māori language, the language of the Māori people of New Zealand * Māori culture * Cook Islanders, the Māori people of the C ...

word for the Sun *

Roua In Tahiti and Society Islands mythology, Roua (or Rahoua or Tubua), is the creator god of the Tuamotus. He is the father of Fati, the god of the Moon, and all the stars by Taonoui In Tahiti and Society Islands mythology, Taonoui is the mother by ...

or Ra, a Polynesian deity *

Tama-nui-te-rā In Māori mythology, Tama-nui-te-rā (Tamanuiterā) is the personification of the Sun. Etymology In the Māori language, ''Tama-nui-te-rā'' means "Great Son of the Sun". The Māori word for "sun" or "day" is ''rā'', deriving from Proto-Polyn ...

, a Maori Sun-god * ''Radeyallāhu ′Anhu'', an Islamic honorific.

Science and technology

Biology and medicine

Retinoic acid Retinoic acid (used simplified here for all-''trans''-retinoic acid) is a metabolite of vitamin A1 (all-''trans''-retinol) that mediates the functions of vitamin A1 required for growth and development. All-''trans''-retinoic acid is required in ...

, a metabolite of vitamin A *

Retrograde amnesia In neurology, retrograde amnesia (RA) is a loss of memory-access to events that occurred or information that was learned in the past. It is caused by an injury or the onset of a disease. It tends to negatively affect episodic, autobiographical, ...

, a form of amnesia *

Rheumatoid arthritis Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and hands are involv ...

, a chronic, systemic inflammatory disorder that attacks synovial joints * Refractory anemia, an expression of

myelodysplasia A myelodysplastic syndrome (MDS) is one of a group of cancers in which immature blood cells in the bone marrow do not mature, and as a result, do not develop into healthy blood cells. Early on, no symptoms typically are seen. Later, symptoms may ...

Computing

* .ra, the file extension for

RealAudio RealAudio, or also spelled as Real Audio is a proprietary audio format developed by RealNetworks and first released in April 1995. It uses a variety of audio codecs, ranging from low-bitrate formats that can be used over dialup modems, to high-fid ...

files * Registration authority, in

public key cryptography Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public key and a corresponding private key. Key pairs are generated with cryptographic alg ...

RemoteAccess RemoteAccess is a DOS Bulletin Board System (BBS) software package written by Andrew Milner and published by his company Wantree Development in Australia. RemoteAccess was written in Turbo Pascal with some Assembly Language routines. RemoteAccess ...

, a BBS software program * Route Advertisement, in networking, part of the

Neighbor Discovery Protocol The Neighbor Discovery Protocol (NDP), or simply Neighbor Discovery (ND), is a protocol of the Internet protocol suite used with Internet Protocol Version 6 (IPv6). It operates at the link layer of the Internet model, and is responsible for gat ...

Transportation

SJ Ra The SJ Class Ra (or Rapid) is an electric locomotive operated by Swedish State Railways ( sv, Statens Järnvägar, SJ). Ten units were built by ASEA, two in 1955 and eight in 1961. Ra was used on express trains until the 1990s. History During th ...

, a Swedish locomotive *

Radar altimeter A radar altimeter (RA), also called a radio altimeter (RALT), electronic altimeter, reflection altimeter, or low-range radio altimeter (LRRA), measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it t ...

, an instrument on aircraft * Resolution Advisory, an aircraft instruction from a Traffic Collision Avoidance System

Other uses in science and technology

R_a

, a popular parameter of roughness, defined as the average of absolute values of deviation from the mean of a surface *

Color rendering index A color rendering index (CRI) is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with a natural or standard light source. Light sources with a high CRI are desirable in ...

(

R_a

), a measure of the ability of a light source to reveal the colors of objects faithfully *

Radium Radium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather t ...

, symbol Ra, a chemical element *

Rain Rain is water droplets that have condensed from atmospheric water vapor and then fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. It provides water f ...

(METAR weather code RA) *

Rayleigh number In fluid mechanics, the Rayleigh number (, after Lord Rayleigh) for a fluid is a dimensionless number associated with buoyancy-driven flow, also known as free (or natural) convection. It characterises the fluid's flow regime: a value in a certain ...

, in physics *

Relation algebra In mathematics and abstract algebra, a relation algebra is a residuated Boolean algebra expanded with an involution called converse, a unary operation. The motivating example of a relation algebra is the algebra 2''X''² of all binary relations ...

, a type of mathematical structure *

Right ascension Right ascension (abbreviated RA; symbol ) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in question above the earth. When paired w ...

, in astronomy * Risk analysis, in several fields *

Resource adequacy Resource adequacy (RA, also supply adequacy) in the field of electric power is the ability of the electric grid to satisfy the end-user power demand at any time (typically an issue at the peak demand). RA is a component of the electric system reliab ...

, in electrical power grids

People with the surname

Armen Ra Armen Ra is a Persian-Armenian artist, self-taught thereminist, production designer, director, and performer. Musical career Career (2010-2013) Ra began studying the theremin in 2001, debuting with the orchestral group Antony & the Johnsons in ...

, Iranian-born American musician *

Aron Ra Aron Ra (formerly L. Aron Nelson, born October 15, 1962) is an atheist activist. Ra is the host of the ''Ra-Men Podcast'' and a member of the American Atheists board of directors. He had previously served as president of the Atheist Alliance o ...

, American author, podcaster, and atheist activist * Ed Ra (born 1981), American politician

Other uses

* Ra I and Ra II, reed boats used by Thor Heyerdahl's transatlantic expeditions *

Registered Architect Professional requirements for architects vary from place to place, but usually consist of three elements: a university degree or advanced education, a period of internship or training in an office, and examination for registration with a jurisdict ...

, as a post-nominal suffix *

Remittance advice Remittance advice is a letter sent by a customer to a supplier to inform the supplier that their invoice has been paid. If the customer is paying by cheque, the remittance advice often accompanies the cheque. The advice may consist of a literal l ...

, a letter sent by a customer to a supplier, to inform the supplier that their invoice has been paid *

, in college housing *

Republic Act This article contains a partial list of Philippine laws. Sources of Philippine laws ;Notes : *Customs may be considered as supplementary source of law, however, customs which are contrary to law, public order or public policy shall not be ...

, Philippine laws from 1946 to 1972 and after 1987 * One of several

ISO 217 The ISO 217:2013 standard defines the RA and SRA paper formats. Overview These paper series are untrimmed raw paper. RA stands for “raw format A” and SRA stands for “supplementary raw format A”. The RA and SRA formats are slightly larger ...

standard paper sizes * "Ra", a disc golf midrange disc by

Infinite Discs Infinite Discs is an American disc golf equipment retail company based in Logan, Utah. The company also maintains a disc golf scorekeeping app, a course directory, a round tracking website, and a line of discs. History The company was found ...