PF

PF may refer to:

Computer science

• Page fault, a type of exception (error) in computer programming
• Page file, a file used as an extension for computer memory
• PF (firewall), OpenBSD's stateful packet filter
• PF keys, a type of function keys on old keyboards
• Playfish, a developer of free social network games

Geography

• Paracel Islands, FIPS PUB 10-4 territory code
• French Polynesia (Polynésie française), ISO 3166 internet country code .pf

Physics

• Power factor, or cos phi, of an AC electric power system
• Purple fringing, a type of chromatic aberration in photography
• Phenol formaldehyde resin, the earliest synthetic polymer
• Picofarad (pF) or petafarad (PF), multiples of farad, the SI unit of electric capacitance (petafarads rarely if ever used)
• Photon Factory, a synchrotron located at KEK in Tsukuba, Japan

Organizations

• Pheasants Forever, a non-profit habitat conservation organization
• Brazilian Federal Police (Polícia Federal), in Brazil
• Patients' Front, a late 1960s – early 1970s West German pro-illness movement
• South Vietnamese Popular Force, a local defense militia formed by South Vietnam during the Vietnam War
• Patriotic Front (disambiguation), name of a political party in several countries

Other uses

• Phonetic form, a level of syntactic representation in linguistics
• Personal foul (disambiguation), a type of foul in several sports
• P&F, a Point and figure chart in the technical analysis of securities
• Position Fix, a position derived from measuring external reference points
• Power forward (disambiguation)
• Pink Floyd, an English rock band
• Pianoforte, full original name of the piano instrument
• Palestinian Airlines, IATA airline designator
• Paul Frank, an artist and fashion designer
• Public forum debate, a debate sanctioned by the National Forensic League
• Procurator Fiscal, the public prosecutor in Scotland
• Pepperidge Farm, food company
• PF Flyers, a brand of shoes
• Project Fanboy, a comic book news website
• Provident Fund (disambiguation)
• P/F, Partafelag, the abbreviation used for corporations in the Faroe Islands
• Pathfinder (periodicals), supplements to Dungeons & Dragons and the Pathfinder Roleplaying Game
• Pfennig, a unit of currency formerly used in Germany
• Plantar fasciitis, an inflammatory injury in the midfoot

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