PP

PP, pp, Pp, or P_p may refer to:

Places

• Perry Park, any of several places in Australia, England, or the United States
• Phi Phi Islands, in Thailand
• Phnom Penh, the capital city of Cambodia
• Potts Point, New South Wales, a suburb of Sydney, Australia

Computers and computing

• Pentium Pro, a sixth-generation Intel central processing unit
• Plug and play, a type of peripheral device used in computing
• PowerPoint, software from Microsoft
• PP-format, a Met Office proprietary file format for distributing climate data

Law

• Per procurationem (Latin - "by agency"), the act of procuration or signing a letter on behalf of somebody else
• Public prosecutor
• Prefecture of Police of Paris

Media

• Pittsburgh Press, a former newspaper of the Pittsburgh, Pennsylvania region
• Politieke Partijen, programme block on Dutch public broadcasting, to give airtime to political party messages

Organizations

• PayPal, an e-commerce organisation
• Planned Parenthood, a social services organization

Politics

• Democratic and Social Centre – People's Party (Centro Democrático e Social/Partido Popular), (Portugal)
• Pater Patriae ("p.p."), an honorary title ("Father of the Country") in the Ancient Roman Empire
• Patriotic Party (Guatemala) (Partido Patriota)
• People's Party (Romania, 2005–2006) (Partidul Popular)
• People's Party (Spain) (Partido Popular)
• Progress Party, any of various political parties throughout the world
• Progressive Party (Brazil) (Partido Progressista)

Popular culture

• Peter Parker, the true identity of Spider-Man
• Platinum piece, a coin used in the game Dungeons & Dragons
• Polly Pocket, a range of dolls and accessories
• Pokémon Platinum, a video game
• Power Points, part of the gameplay of Pokémon
• Prank Patrol, any of several children's TV series from different countries
• Psychic Points from EarthBound
• Pure Pwnage, an internet-based show
• Puyo Puyo, a Japanese puzzle video game
• Yohoho! Puzzle Pirates, an MMO game maintained by Three Rings Design

Religion

• Papa Pontifex (Latin for "Pope"), when written "PP."
• parish priest, written "P.P."
• Prajnaparamita ("Perfection of Wisdom"), and/or a genre of Buddhist sutras describing it

Science, medicine and engineering

• Length between perpendiculars ("pp" or "p/p"), a nautical term
• pancreatic polypeptide, a substance produced by the body during the process of digestion
• peak to peak (p-p), a way of measuring the amplitude of a signal
• percentage point
• per protocol population in clinical trials
• Piecewise polynomial, see spline (mathematics)
• polyphenols, a category of phytochemicals
• polyphagia, an eating disorder
• polypropylene, a very common plastic polymer
• PP cell, cell producing pancreatic polypeptide
• PP (complexity), probabilistic polynomial time complexity class
• P-P plot
• prepositional phrase, used in linguistics
• primary production, the production of organic compounds from carbon dioxide
• process performance index (P_p), a tool used in statistical calculations
• proton-proton chain reaction, in nuclear physics
• pseudopotential, a computational chemistry approximation
• pulse pressure
• pyrantel pamoate, a treatment for parasitic worms
• pot party

Sport

• Paparazzi Productions, a former professional wrestling stable
• Persepolis F.C., Iranian football (soccer) team
• Pittsburgh Pirates, a Pittsburgh-based Major League Baseball team
• Pittsburgh Penguins, a Pittsburgh-based National Hockey League team
• a power play, chiefly in ice hockey
• Prenton Park, the home ground of English association football club Tranmere Rovers

Other

• Pages, from Latin paginae, see acronyms
• 'Pianissimo' a term of musical dynamics
• Walther PP, a semi-automatic pistol
• Per Procurationem, from Latin by agency - used when signing on somebody else's behalf

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