Ra (disambiguation) explained

Ra is the Sun-god of Ancient Egypt.

Ra or RA may also refer to:

Arts and entertainment

Film and television

Ra (Stargate), 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
, a game

Music

A half-step below Re on the solfège musical scale

Performers

Ra (band), an American rock band
Ra (musician), the pseudonym of Raoul Sinier, a French digital painter and electronic musician
R.A. the Rugged Man (born c. 1974), American rapper
Sun Ra (1914–1993), American jazz musician and philosopher
Rise Against, an American punk/hardcore band

Albums

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

Songs

"Ra", a song by Northlane from Node, 2015
Ra (Inna song), 2018

Other media

Ra, a novel by qntm
Ra (board game), a board game for two to five players designed by Reiner Knizia and based on ancient Egyptian culture
Resident Advisor, an online magazine

Businesses and organizations

Academia

Resource Academia, an academic institution in Lahore, Pakistan
Roosevelt Academy, a college in the Netherlands
Royal Academy of Arts, in London, UK
- Royal Academician, one of the 80 practicing artists elected as a member of the Royal Academy
Resident assistant, a student leader

Government, military, and political organizations

Rainbow Alliance (Liberia), a political alliance in Liberia
Regular Army, the permanent force of an army that is maintained during peacetime
Regulatory affairs, a department in charge of industry-government relations
Provisional Irish Republican Army, Irish Nationalist paramilitary group active during The Troubles
Resettlement Administration, a New Deal government program in the United States
Royal Artillery, a regiment of the British Army

Other businesses and organizations

Ramblers' Association, a UK organisation for walkers
Registration authority, a body which maintains lists of international standards codes
Rowing Australia, governing body for the sport of rowing in Australia
Road America, which uses the logo "RA"; a racetrack in Wisconsin, USA
Nepal Airlines (IATA code RA)

Linguistics

Ra (Javanese) (ꦫ), a letter in the Javanese script
Ra (kana), 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 or rāʾ, 10th letter of Arabic alphabet
Ռ or ṙa, the 28th letter in the Armenian alphabet
र, ड़', ढ़, and र्ह, Devanagari letters which can be called ra, ṛa or rha
Ԗ, the 23rd letter rha («ра») in the older (1924−1927) Moksha language Cyrillic script
ர and ற, Tamil letters articulated as ra, tra or dra depending on the consonant complex

Places

Argentina, license plate code
Ra (island) (or Rah), a small island of Vanuatu
Ra Province in Fiji
- Ra (Fijian Communal Constituency, Fiji)
- Ra (Open Constituency, Fiji)
Republic of Armenia
Rawlins County, Kansas, 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 word for the Sun
Roua or Ra, a Polynesian deity
Tama-nui-te-rā, a Maori Sun-god
Radeyallāhu ′Anhu, an Islamic honorific.

Science and technology

Biology and medicine

Retinoic acid, a metabolite of vitamin A
Retrograde amnesia, a form of amnesia
Rheumatoid arthritis, a chronic, systemic inflammatory disorder that attacks synovial joints
Refractory anemia, an expression of myelodysplasia

Computing

.ra, the file extension for RealAudio files
Registration authority, in public key cryptography
RemoteAccess, a BBS software program
Route Advertisement, in networking, part of the Neighbor Discovery Protocol

Transportation

SJ Ra, a Swedish locomotive
Radar altimeter, an instrument on aircraft
Resolution Advisory, an aircraft instruction from a Traffic Collision Avoidance System

Other uses in science and technology

R_a

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

Color rendering index (

R_a

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

Radium, symbol Ra, a chemical element
Rain (METAR weather code RA)
Rayleigh number, in physics
Relation algebra, a type of mathematical structure
Right ascension, in astronomy
Risk analysis, in several fields
Resource adequacy, in electrical power grids

People with the surname

Armen Ra, Iranian-born American musician
Aron Ra, 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, as a post-nominal suffix
Remittance advice, a letter sent by a customer to a supplier, to inform the supplier that their invoice has been paid
Research assistant, in academia
Resident assistant, in college housing
Republic Act, Philippine laws from 1946 to 1972 and after 1987
One of several ISO 217 standard paper sizes
"Ra", a disc golf midrange disc by Infinite Discs