RL, Rl or rl may refer to:

In arts and entertainment

Radio Liberty Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmit ...

, US broadcaster * ''

Rocket League ''Rocket League'' is a vehicular soccer video game developed and published by Psyonix. The game was first released for Windows and PlayStation 4 in July 2015, with ports for Xbox One and Nintendo Switch being released later on. In June ...

'', a video game

Businesses and organizations

Polo Ralph Lauren Ralph Lauren Corporation is an American publicly traded fashion company that was founded in 1967 by American fashion designer Ralph Lauren. The company is headquartered in New York City, producing products ranging from the mid-range to the luxur ...

(NYSE stock ticker symbol) *

Réseau Luxembourgeois des Amateurs d'Ondes Courtes The Radioamateurs du Luxembourg (RL) (in English, Luxembourg Amateur Radio Society), originally founded in 1937 as Réseau Luxembourgeois des Amateurs d'Ondes Courtes (Luxembourg Network of Shortwave Radio Amateurs), is a national non-profit orga ...

, an amateur radio organization in Luxembourg *

Royal Phnom Penh Airways Royal Phnom Penh Airways was an airline based in Phnom Penh, Cambodia. It operated domestic services, as well as regional flights to Thailand out of Phnom Penh International Airport and Angkor International Airport, Siem Reap.Flight Internationa ...

(IATA code)

People known by the given initials

R. L. Huggar Robert Lavelle Huggar (born April 2, 1977), better known by his initials RL, is an American singer, songwriter and record producer. He is best known for being the lead singer of the R&B group Next. Early life Robert Lavelle Huggar was born in 1 ...

, an R&B singer *

RL Grime Henry Alfred Steinway (born February 8, 1991), better known by his stage name RL Grime, (previously known as Clockwork) is an American record producer and DJ. RL Grime specializes in trap and bass music and is a member of the Los Angeles electr ...

, American musician, producer

In science and technology

RL (complexity) Randomized Logarithmic-space (RL), sometimes called RLP (Randomized Logarithmic-space Polynomial-time), is the complexity class of computational complexity theory problems solvable in logarithmic space and polynomial time with probabilistic Turing m ...

, a complexity class of mathematical problems *

RL circuit A resistor–inductor circuit (RL circuit), or RL filter or RL network, is an electric circuit composed of resistors and inductors driven by a voltage or current source. A first-order RL circuit is composed of one resistor and one inductor, eithe ...

, a circuit with a resistor and an inductor *

Reinforcement learning Reinforcement learning (RL) is an area of machine learning concerned with how intelligent agents ought to take actions in an environment in order to maximize the notion of cumulative reward. Reinforcement learning is one of three basic machine ...

, an area of machine learning *

Reduced level Reduced level in surveying refers to equating elevations of survey points with reference to a common assumed datum. It is a vertical distance between survey point and adopted datum plane. Thus, it is considered as the base elevation which is used as ...

, elevations of survey points with reference to a common assumed datum. * ''

Rhyncholaelia ''Rhyncholaelia'', abbreviated ''Rl.'' in the horticultural trade, is a genus of orchids (family Orchidaceae), comprising two species. They are distributed in Mexico, Guatemala, Belize, and Honduras. Both species were originally published in '' ...

'' (''Rl.''), a genus of orchids

Other uses

Rl (digraph) This is a list of digraphs used in various Latin alphabets. Capitalisation involves only the first letter (''ch'' becomes ''Ch'') unless otherwise stated (''ij'' becomes ''IJ''). Letters with diacritics are arranged in alphabetic order accordin ...

in Australian Aboriginal languages * Acura RL, an automobile *

Real life Real life is a phrase used originally in literature to distinguish between the real world and fictional, virtual or idealized worlds, and in acting to distinguish between actors and the characters they portray. It has become a popular term on th ...

, Internet term *

Registered Locksmith ALOA Security Professionals Association (ALOA, formerly known as the Associated Locksmiths of America) is an American trade organization for locksmiths and other physical security professionals. The organization represents more than 6,000 locksmi ...

, US certification * Report Long, a type of US

Congressional Research Service Report The Congressional Research Service (CRS) is a public policy research institute of the United States Congress. Operating within the Library of Congress, it works primarily and directly for Member of Congress, members of Congress and their United S ...

Rugby league Rugby league football, commonly known as just rugby league and sometimes football, footy, rugby or league, is a full-contact sport played by two teams of thirteen players on a rectangular field measuring 68 metres (75 yards) wide and 11 ...

, a sport {{disambiguation