P.S. commonly refers to:

  • Postscript, writing added after the main body of a letter

PS, P.S., or ps may also refer to:

Arts, entertainment and media

Literature

  • PS Publishing, based in the UK
  • PS Magazine, a U.S. Army magazine
  • Popular Science, a U.S. magazine
  • PlayStation Magazine (disambiguation)

Music

  • PS Classics, a record label
  • P.S. (album), a compilation album of film music by Goran Bregovic
  • P.S. (A Toad Retrospective), a compilation album of music by Toad The Wet Sprocket
  • "PS", 2003 song by The Books from the album The Lemon of Pink
  • "P.S.", 1993 song by James from the album Laid

Stage and screen

  • P.S. (film), a 2004 film
  • P.S., a 2010 film by Yalkin Tuychiev
  • PS (TV series), a German television series
  • Prompt corner or prompt side, an area of a stage
  • P.S. (Doctor Who), a mini episode of the seventh series of Doctor Who

Other media

  • PlayStation, a video gaming brand owned by Sony
  • PlayStation (console), a home video game console by Sony
  • Ponniyin Selvan (disambiguation), Indian media franchise, abbreviated PS

Honors

  • iPhrothiya yeSiliva, a South African military award
  • Padma Shri, an Indian civilian award

Language

  • Pashto language (ISO 639:<code>ps</code>)
  • Proto-Semitic language, a hypothesized proto-language
  • The sound of Greek letter psi (ψ)

Places

  • Palau (FIPS PUB 10-4 territory code PS)
  • State of Palestine (ISO 3166 country code PS)
  • MoMA PS1, an art institution in New York

Politics

  • PS – Political Science & Politics, academic journal
  • Parti Socialiste (disambiguation), French
  • Partido Socialista (disambiguation), Spanish and Portuguese
  • Partito Socialista (disambiguation), Italian
  • Polizia di Stato, Italian national police force
  • Positive Slovenia
  • Pradeshiya Sabha, a unit of local government in Sri Lanka
  • Progressive Slovakia Progresívne Slovensko
  • Social Democratic Party (Andorra) Partit Socialdemòcrata
  • Socialist Party (Netherlands)
  • Socialist Party of Albania Partia Socialiste
  • Socialist Party of Chile Partido Socialista de Chile
  • Socialist Party of Romania Partidul Socialist [din România]
  • Finns Party Perussuomalaiset
  • Movement of Socialists (Pokret socijalista), a political party in Serbia

Religion

  • Pastors, ministers in some Christian churches
  • Psalms, a book in the Tanakh and Christian Bibles

Science and technology

Units of measurement

  • Petasecond (Ps), 10<sup>15</sup> seconds
  • Picosecond (ps), 10<sup>−12</sup> seconds
  • Pferdestärke (PS), abbreviation of the German term for metric horsepower
  • Picosiemens (pS), SI unit of electric conductance

Computing

  • Adobe Photoshop, a graphics editor and creator by Adobe
  • MPEG program stream, an MPEG-2 container format
  • Parametric Stereo, feature used in digital audio
  • PostScript, a page description language
  • .ps, filename extension for a file in PostScript format
  • ps (Unix), an application that displays statistics on running processes
  • .ps, Palestinian Internet domain extension or top-level domain (ccTLD)
  • PS Power and Sample Size, an interactive computer program for power and sample size calculations
  • Windows PowerShell, a command line scripting and system management shell for Microsoft Windows

Medicine

  • Panayiotopoulos syndrome, a childhood seizure disorder
  • Progeroid syndromes, a group of rare diseases causing premature aging
  • Pulmonary stenosis or pulmonic stenosis, obstruction of the pulmonary artery of the heart

Physics and chemistry

  • P or static pressure, in fluid mechanics and aviation
  • Proton Synchrotron, a 1959 particle accelerator at CERN
  • Chloropicrin, a highly toxic chemical compound
  • Persulfate, a class of peroxide sulfate used as a powerful oxidizing agent
  • Phosphatidylserine, a phospholipid
  • Phosphorothioate (or thiophosphate), a family of compounds and anions with the general chemical formula PS<sub>4−x</sub>O<sub>x</sub><sup>3−</sup> (x = 0, 1, 2, or 3)
  • Polystyrene, a common type of plastic
  • Ps, positronium, pseudo-chemical symbol

Transportation

  • Paddle steamer, abbreviated PS in vessel prefixes
  • Power Stage, a World Rally Championship special stage
  • Power steering, a device that helps with steering vehicles
  • Pacific Southwest Airlines (1949-1988), IATA designator of former airline
  • Ukraine International Airlines, IATA airline designator since 1992
  • South Papua (vehicle registration prefix PS)

Other uses

  • Planning Service, Department of the Environment (Northern Ireland)
  • Plastic Surgery, abbreviated as P.S. for simple use
  • Police sergeant
  • Power supply
  • Professional services, abbreviated P.S. in name suffixes
  • State school or public school, in the US and other countries

See also

  • P.S. I Love You (disambiguation)
  • PSS (disambiguation)