(UK) Abbreviation of probationary (used on a vehicle's P-plate) / (Australia) Abbreviation of provisional (used on a vehicle's P-plate) / (anatomy, medicine) Abbreviation of pulmonary.

(computing theory) The set of all problems that are solvable in polynomial time by a deterministic Turing machine / (law) Initialism of patient. (the subject of proceedings in the Court of Protection)

(sports) Initialism of position. (prefixed to a number) (indicates the placing of a competitor in (starting, during, after) a competition)

(organic chemistry) para-

Initialism of The Great Atlantic & Pacific Tea Company: an American chain of grocery stores that operated from 1859 to 2015.

(medicine) Initialism of anterior and posterior. / (business) Initialism of advertising and promotional.

(medicine, education) Initialism of anatomy and physiology. / (aviation) Initialism of airframe and powerplant.

(programming) A very low-level code that is machine-independent and enables a compiled file to be run on different processor types.

(euphemistic) An interjection in response to smelling an unpleasant scent; an exaggerated pronunciation of pew.

(UK, Australia) A plastic square sticker consisting of a large red letter P on a white background, placed on a vehicle to indicate that the driver only has a provisional (UK: probationary) driver's licence.