PL may refer to:

• pL, picolitre, a unit of volume (10⁻¹² litre)
• PL, ISO 3166 code for Poland
• pl, ISO 639-1 code for Polish language
• Patrologia Latina
• Perfect Liberty, or PL Kyodan, a religious movement founded in Japan in the early 20th Century
• photoluminescence
• Piecewise linear
• Plastic limit in geotechnical engineering
• Progressive Labor Party, a United States communist party
• Propositional logic, a system of evaluating truth-based propositions in terms of binary logic
• Public Law
• Public liability

In aviation: The litre (or liter in US) is a metric unit of volume. ... ISO 3166 is a three-part geographic coding standard for coding the names of countries and dependent areas, and the principal subdivisions thereof. ... ISO 639-1 is the first part of the ISO 639 international-standard language-code family. ... Polish (język polski, polszczyzna) is the official language of Poland. ... The Patrologia Latina is an enormous work published by Jacques-Paul Migne between 1844 and 1855, with indices published between 1862 and 1865. ... liberty is the unsatisfactory word in itself as it speeks about the nothing except the revolutionary thinking so i would like to have a debate in respect of this view. ... Photoluminescence is a process in which a chemical compound absorbs a photon (electromagnetic radiation), thus transitioning to a higher electronic energy state, and then radiates a photon back out, returning to a lower energy state. ... In mathematics, a piecewise linear function , where V is a vector space and is a subset of a vector space, is any function with the property that can be decomposed into finitely many convex polytopes, such that f is equal to a linear function on each of these polytopes. ... The tensile strength of a material is the maximum amount of tensile stress that it can be subjected to before it breaks. ... The Progressive Labor Party (originally the Progressive Labor Movement, sometimes still referred to simply as PL) is a communist political party based in the United States. ... Propositional logic or sentential logic is the logic of propositions, sentences, or clauses. ... This article or section does not adequately cite its references or sources. ... Public Liability is part of the law of torts which focuses on civil wrongs. ...

• Airstars Airways, current IATA code PL
• AeroPeru, former IATA code PL

In computing and internet: Airstars Airways (Russian: Авиакомпания Аэростарз) (IATA: PL, ICAO: ASE, and Callsign: Morozov) is a cargo airline based in Moscow, Russia. ... Aeroperu (shorter for Empresa Nacional de Aeronavegación del Perú, SA) was the national flag air carrier of Peru. ...

• .pl, country code top-level domain for Poland
• .pl, common filename suffix for Perl scripts
• .pl, common filename suffix for Prolog programs
• .pl, common filename suffix for TeX font property lists
• PL/C
• PL/I
• PL/SQL
• packet loss
• Procedural programming
• Programming language

pl or player in games .pl is the Internet country code top-level domain (ccTLD) for Poland, administered by NASK, Polish research and development organization. ... Wikibooks has a book on the topic of Perl Programming Perl is a dynamic programming language created by Larry Wall and first released in 1987. ... Prolog is a logic programming language. ... A TeX font metric, or TFM, is a font metric format used by TeX. Unlike outline font formats such as TrueType, a TFM provides only the information necessary to typeset the font: each characters width, height and depth. ... PL/C is a large subset of IBMs PL/I language, designed in the early 1970s at Cornell University. ... PL/I (Programming Language One, pronounced pee el one) is an imperative computer programming language designed for scientific, engineering, and business applications. ... PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporations proprietary server-based procedural extension to the SQL database language. ... This page meets Wikipedias criteria for speedy deletion. ... This article is about the computer programming paradigm. ... A programming language is an artificial language that can be used to control the behavior of a machine, particularly a computer. ...

In sports:

• Pioneer Baseball League, a Rookie league in Minor League Baseball
• Pioneer Football League, NCAA FCS conference
• Premier League, league competition for football clubs located at the top of the English football league system

PL may also refer to: Pioneers | logo = PioneerLeague. ... The Pioneer Football League is a college athletic conference which operates literally from coast to coast in the United States. ... For other sports leagues which may be referred to by this name, see List of professional sports leagues. ...

• Ice Pellets, METAR Code PL
• Squelch (aka Private Line), in shared radio frequencies

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