| Acronym | Definition |
|---|
| PA➣Physician Assistant |
| PA➣Public Address |
| PA➣Pennsylvania (US postal abbreviation) |
| PA➣Purchasing Agent |
| PA➣Port Angeles (Washington) |
| PA➣Public Affairs |
| PA➣Pará (Brazilian state) |
| PA➣Para (Brazil) |
| PA➣Public Address system |
| PA➣Princess Anne (high school in Virginia Beach, Virginia) |
| PA➣Public Administration |
| PA➣Port Authority (of NY and NJ) |
| PA➣Press Association (British National News Agency) |
| PA➣Program Administrator |
| PA➣Public Assistance |
| PA➣Professional Association |
| PA➣Parents Association |
| PA➣Point A |
| PA➣Physical Activity (health) |
| PA➣Program Announcement |
| PA➣Panama |
| PA➣Pay Attention |
| PA➣Privacy Act |
| PA➣Public Accounting |
| PA➣Points Against |
| PA➣Power of Attorney |
| PA➣People's Association (Singapore) |
| PA➣Personal Assistant |
| PA➣Put Away |
| PA➣Police Academy |
| PA➣Pass Along |
| PA➣Political Affairs (journal of the Communist Party of the United States of America) |
| PA➣Pre Approval (to adopt) |
| PA➣Pan Am (airline) |
| PA➣Phillips Academy (Andover) |
| PA➣Performance Analysis |
| PA➣Palo Alto (California) |
| PA➣Prince Albert (Canada) |
| PA➣Prince Albert (piercing) |
| PA➣Production Assistant (filmmaker) |
| PA➣Production Assistant |
| PA➣Peace Agreement |
| PA➣Program Assistant |
| PA➣Paraguay |
| PA➣Performance Assessment |
| PA➣Pamela Anderson |
| PA➣Project Administrator |
| PA➣Programmer/Analyst |
| PA➣Power Amplifier |
| PA➣Power-Amplifier |
| PA➣Pascal |
| PA➣Palestinian Authority |
| PA➣Penny Arcade (webcomic) |
| PA➣Prior Authorization (Pharmacy Benefits) |
| PA➣Protected Area (conservation) |
| PA➣Pale Ale |
| PA➣Port Adapter (Cisco) |
| PA➣Party Animal |
| PA➣Personal Appearance |
| PA➣Public Announcement |
| PA➣Publishers Association |
| PA➣Planning Authority |
| PA➣Pulmonary Artery |
| PA➣Process Analysis |
| PA➣Policy Analyst |
| PA➣Pakistan Army |
| PA➣Professional Associates |
| PA➣Publish America (book publisher) |
| PA➣Per Annum |
| PA➣Paralegal |
| PA➣Polk Audio |
| PA➣Plein Air (Quebec) |
| PA➣Power Act (gaming) |
| PA➣Pali (linguistics) |
| PA➣Paisley (postcode, United Kingdom) |
| PA➣Personal Accident (insurance) |
| PA➣Performance Appraisal |
| PA➣Project Architect |
| PA➣Public Appearance |
| PA➣Process Automation |
| PA➣Personnel Action |
| PA➣Preliminary Assessment |
| PA➣Point d'Appui (French: Support Point) |
| PA➣Parental Advisory |
| PA➣Passive Aggressive (behavioral health) |
| PA➣Personnel Administration (various organizations) |
| PA➣Philippine Army |
| PA➣Preferred Alternative |
| PA➣Psychoanalysis |
| PA➣Process Area |
| PA➣Phonological Awareness |
| PA➣Project Accounting |
| PA➣Program Access |
| PA➣Post-Apocalyptic |
| PA➣Bureau of Public Affairs |
| PA➣People's Alliance |
| PA➣Plasminogen Activator (biochemistry) |
| PA➣Perfect Attendance |
| PA➣Problem Analysis |
| PA➣Pseudomonas aeruginosa (bacteria) |
| PA➣Planet of the Apes (movie) |
| PA➣Polyamide |
| PA➣Pernicious Anemia |
| PA➣Public Aid (Medicaid) |
| PA➣Pregnancy-Associated |
| PA➣Practicing Attorney |
| PA➣Project Analyst |
| PA➣Pharmacological Action (US NIH) |
| PA➣Phthalic Anhydride (organic compound) |
| PA➣Patients Association (UK) |
| PA➣Penny Arcade (comic strip) |
| PA➣Punk Ass |
| PA➣Psoriatic Arthritis |
| PA➣Peace Arch (US/Canada border) |
| PA➣Picatinny Arsenal |
| PA➣Precautionary Approach (fisheries) |
| PA➣Playahead (Internet community) |
| PA➣Pantothenic Acid |
| PA➣Position Angle (astronomy) |
| PA➣Plate Appearance (Baseball) |
| PA➣Private Adoption |
| PA➣Preferential Attachment (mathematics) |
| PA➣Point Analysis |
| PA➣Project Assessment |
| PA➣Protactinium |
| PA➣Protective Antigen (microbiology) |
| PA➣Pollution Abatement |
| PA➣Persistent Asthma |
| PA➣Particle Accelerator |
| PA➣Press Agent |
| PA➣Personal Adviser |
| PA➣Paying Agent |
| PA➣Porte-Avions (French, aircraft carrier) |
| PA➣Pinkerton Academy (New Hampshire) |
| PA➣Private Account |
| PA➣Pancreatic Adenocarcinoma |
| PA➣Plant Air |
| PA➣Pax Americana |
| PA➣Preparing Activity |
| PA➣Processing Activities |
| PA➣Personalausweis (German: identity card) |
| PA➣Protocol Analyzer |
| PA➣Programmatic Agreement (USACE) |
| PA➣Posterior Anterior (radiology) |
| PA➣Predictive Analysis |
| PA➣Project Agreement |
| PA➣Product Assurance |
| PA➣Palermo, Sicilia (Italian province) |
| PA➣Precision Approach (avionics) |
| PA➣Pressure Altitude |
| PA➣Power Automation |
| PA➣Policy Article (medical policy) |
| PA➣Property Administrator |
| PA➣Production Agency |
| PA➣Phantom Assassin (gaming) |
| PA➣Preventative Action |
| PA➣Preferred Address |
| PA➣Permit Authority |
| PA➣Proanthocyanidin (flavanol class) |
| PA➣Prohibited Areas |
| PA➣Prednisolone Acetate (eye medication; usually followed by %) |
| PA➣Polyacryl |
| PA➣Personal Alarm |
| PA➣Partial Agreement |
| PA➣Political Agent (Pakistan) |
| PA➣Peer Advisor |
| PA➣Potential Equalisation |
| PA➣Provider Aggregatable (Internet Provider addresses) |
| PA➣Personal Agent |
| PA➣Public Attorney |
| PA➣Partner Association |
| PA➣Pathologists' Assistant |
| PA➣Planetarion (online game) |
| PA➣Performance Assurance |
| PA➣Pension Adjustment |
| PA➣Pressure Alarm |
| PA➣Proxy Agreement |
| PA➣Precision Attack |
| PA➣Pending Availability |
| PA➣Programming Assistant (campus residential officer) |
| PA➣Post Adjutant |
| PA➣Program Authorization |
| PA➣Propionic Acidemia |
| PA➣Principal Administrator |
| PA➣Pilote Automatique (French: Autopilot) |
| PA➣Project Authorization |
| PA➣Proponent Agency |
| PA➣Project Audit |
| PA➣Privacy Advocate |
| PA➣Perfect Attack (gaming, Dance Dance Revolution) |
| PA➣Prosecution Attorney |
| PA➣Pastoral Assistant |
| PA➣Privatization Agency |
| PA➣Producing Ability (breeding) |
| PA➣Public Audio |
| PA➣Proof Assistant |
| PA➣Parliamentary Assistant (Ontario Government) |
| PA➣Pooling Administrator |
| PA➣Pepper-Ann (TV show) |
| PA➣Professional Audio System |
| PA➣Participatory Appraisal |
| PA➣Production Acceptance |
| PA➣Proton Affinity |
| PA➣Passenger Address |
| PA➣Picoampere |
| PA➣Procurement Army |
| PA➣Partido Arnulfista (Arnulfista Party, Panama) |
| PA➣Paper Advance |
| PA➣Project Arrangement |
| PA➣Physical Affair |
| PA➣Provider Assigned (IP address space assigned to a specific provider by IANA) |
| PA➣Programmed Amount (USACE) |
| PA➣Pastoral Administrator |
| PA➣Protected Administrator (computer security) |
| PA➣Performing Activity (CEFMS) |
| PA➣Professor's Assistant |
| PA➣Product Accelerator |
| PA➣Passenger Announcement (airlines) |
| PA➣Progressão Aritmética |
| PA➣Perverted Ass |
| PA➣Payroll Area |
| PA➣Pierce Armor (Age of Kings game) |
| PA➣Procurement Authorization |
| PA➣Physician's Association |
| PA➣Photoinduced Absorption |
| PA➣Polar Air Mass |
| PA➣Procurement Appropriation |
| PA➣Pseudomonas Aeruginosa Lectin |
| PA➣Position Approximate |
| PA➣Pride Africa (Herndon, VA) |
| PA➣Parti de l'Action (French: Action Party, Morocco) |
| PA➣Pre-Auditing |
| PA➣Paulus Apostolus (Apostol Paul) |
| PA➣Parapsychological Association, Inc (Petaluma, California) |
| PA➣Pre-Arbitrated |
| PA➣Payload Accommodations |
| PA➣Product Accumulate (linear code) |
| PA➣Preplaced-Aggregate (concrete) |
| PA➣Perforate Artery (Darke Age of Camelot game) |
| PA➣Premier Agendas, Inc. (US) |
| PA➣Pass-through Applications |
| PA➣Putt and Approach (disc golf) |
| PA➣Physical Abuse/Assault |
| PA➣Peano Arithmetics |
| PA➣Perverts Anonymous |
| PA➣Produktaansprakelijkheid (Dutch: product responsibility) |
| PA➣Pokémon Aaah! (website) |
| PA➣Paralyzed Age (band) |
| PA➣Process Allocator |
| PA➣Platinum Aero (band) |
| PA➣Prune Agar |
| PA➣Patronato Antialcohólico (Guatemala) |
| PA➣Plaza Automotriz (Guatemala car dealer) |
| PA➣Paniagua y Asociados (Guatemala, consulting agency) |
| PA➣Procurement Aide/Assistant |
| PA➣Position Adaptivity |
| PA➣Paramedic's Assistant |
| PA➣Persisting to an Older Age |
| PA➣Purchasing Aide/Assistant |
| PA➣Program Account/Allocation |
pa - an informal term for a father; probably derived from baby talk
Pa - a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
PA - a Mid-Atlantic state; one of the original 13 colonies
PA - an electronic amplification system used as a communication system in public areas