British vehicle registration for Guildford
• postcode for Paisley
• Pakistan Army
• airline flight code for Pan Air Lineas Aereas
• international vehicle registration for Panama
• Chem. parent atom
• Parents' Association
• (or P/A) Insurance particular average
• US postcode for Pennsylvania
• performance assessment
• Med. pernicious anaemia
• Insurance personal accident
• Accounting personal account
• Taxation personal allowance
• personal appearance
• personal assistant
• Chem. phosphoric acid
• (USA ) physician assistant
• Pierre Allain (climbing boot; named after its inventor)
• Piper Aircraft (as in PA-28 )
• Engineering pitch angle
• Med. plasminogen activator
• political agent
• por autorización (Spanish: by authority of)
• Astronomy position angle
• Military Post Adjutant
• power amplifier
• (or P/A) power of attorney
• RC Church Prefect Apostolic
• press agent
• Press Association
• press attaché
• (or P/A) Banking , Book-keeping private account
• product analysis
• programme assistant
• Med. psoriatic arthritis
• (USA ) public accountant
• public address (system)
• publicity agent
• Publishers Association
• Engineering pulsed annealing
• purchasing agent
• (USA ) Prosecuting Attorney