P (disambiguation)

P, or p, is the sixteenth letter of the English alphabet.

P may also refer to:

• Rho (letter), in Greek alphabet; the lowercase p is also sometimes confused with the lowercase Rho, ρ or ϱ
• Er (Cyrillic), in Cyrillic alphabet; it is sometimes confused with the Latin letter P
• 𝔓^n siglum for New Testament papyrus with Gregory-Aland number n
• In linguistics, P (also O), the patient-like argument (object) of a canonical transitive verb
• Encircled P, or ℗, is the sound recording copyright symbol
• p., an abbreviation for page when referencing a page number in a print publication
• Portugal country code in the vehicle registration plates of the European Union
• Parking, see also Parking (disambiguation).
• P (Nazi symbol), worn by Polish forced labourers during Nazi occupation
• P, the aircraft registration prefix for North Korean planes
• P, an abbreviation of gridiron football position punter

Arts, literature and music

• P, code for the Paris Herbarium at the Muséum national d'histoire naturelle
• P, the ancient Greek author of the Hellenica Oxyrhynchia
• P, the production code for the 1965 Doctor Who serial The Crusade
• P (film), a 2005 Thai film
• "P" Is for Peril, a 2001 novel by Sue Grafton
• P, an abbreviation of Pinxit
• p or piano, a dynamic direction to play softly
• P, priestly source of the Hebrew Bible
• Agent P, the codename for Perry the Platypus in Phineas and Ferb

Music

• P (band), a 1993–95 American alternative rock band
  • P (album), the 1995 eponymous release by American alternative rock band P
• "P," a song from the Venetian Snares album Cavalcade of Glee and Dadaist Happy Hardcore Pom Poms
• "P", a song by American rapper Jaden from his 2019 album ERYS

Computing

• P(), the usual name for the operation to acquire a semaphore
• <p>...</p>, the HTML element used to create a paragraph
• P-type semiconductor
• P (programming language), developed by Microsoft and UC, Berkeley
• Primitive programming language P′′
• p, a suffix unit for video resolution (vertical Progressive-scan lines), as in 720p or 1080p
• The P convention in communication

Mathematics

• p-value, in statistical hypothesis testing
• P (complexity), a complexity class in computational complexity theory
• #P complexity class
• P, universal parabolic constant
• Pi
• P or ${\displaystyle \mathbb {P} }$ - the set of all primes and p an individual prime
• ℘-functions or p-functions, are the Weierstrass elliptic function
• p-series, a common name for the Harmonic series (mathematics)
• P, Projective space

Money, corporate

• P (instead of ₱), a symbol often used for the Philippine peso
• p is a symbol for penny
• P, the New York Stock Exchange ticker symbol for Pandora Media, Inc., the corporate owner of Pandora Radio
• P, Panasonic's mobile phones in Japan
• Railpower Technologies (TSX: P), a Canadian company that builds environmentally friendly hybrid yard locomotives

Science

• p, the symbol for momentum in physics
• P, the symbol for power (physics)
• P, the symbol for proposition
• Pulse, the rate of heartbeats
• °P, the unit in descriptions of alcohol proof
• Poise, the unit for dynamic viscosity in the centimetre gram second system of units
• Phosphorus, symbol P, a chemical element
• p, the symbol for pressure
• p, the SI prefix symbol for pico-, 10^−12
• P, the SI prefix symbol for Peta-, 10^15
• p, approximates the negative common logarithm (base 10) in pH, the measure of acidity or basicity
• Haplogroup P (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
• Haplogroup P (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
• Methamphetamine, nicknamed "P" in New Zealand
• p designates the short arm of a chromosome
• ATC code P Antiparasitic products, insecticides and repellents, a section of the Anatomical Therapeutic Chemical Classification System
• Proline, an amino acid abbreviated P or Pro
• P-factor, an aerodynamic effect
• p factor (psychopathology)

Transportation

• Transilien Line P, a line of the Paris transport network
• P (Los Angeles Railway)
• The official West Japan Railway Company service symbol for:
  • Sakurajima Line.
  • Geibi Line.
• Nankō Port Town Line, an automated guideway line operated by the Osaka Metro, labeled

Other uses

• Papa, the military time zone code for UTC−03:00

See also

• Pea (disambiguation)
• Pee (disambiguation)
• Rho (disambiguation)
• P. (disambiguation)