| Presidents And Academic Deans | Academic & Science |
| Packet Assemble-Disassemble | Academic & Science |
| Preauthorized Electronic Debit | Accounts and Finance |
| Percentage After Deviation | Accounts and Finance |
| Paderborn | Airport Code |
| Public Accounts Department | Banking |
| Pre-Authorized Debit | Business |
| Product and Application Development | Business |
| Packed Assemble and Disassemble | Business |
| Probe Answer Detail | Business |
| Public Access to Defibrillation | Community |
| Patience And Discipline | Community |
| Public Access To Defibrillators | Community |
| Packet Assembler Disassembler | Computer and Networking |
| Private Alias Directory | Computing |
| Puzzle And Dragons | Computing |
| Protected Areas Database | Computing |
| Packet Assembly Disassembly | Computing |
| Portable Application Description | Computing |
| Picture A Day | Computing |
| Product Assembly Document | Computing |
| Public Access Device | Computing |
| Program Associated Data | Computing |
| Prefetch Address | Computing |
| Pay After Delivery | Computing |
| Paddington, London | Country Specific |
| NearPad | Cryptocurrency |
| SmartPad | Cryptocurrency |
| Telemate Keypad Definition File | File Type |
| Pattern Aided Design | General |
| Portable Application Descri | General |
| Public Access Defibrillator | General |
| Portland Alternative Dwellings | General |
| Phi Alpha Delta | General |
| Personnel Administration for Departments | General |
| Passive Authorization Device | General |
| Power Assisted Doors | General |
| Passenger Airbag Deactivation | General |
| Panoz Auto Development | General |
| Priorite A Droite | General |
| Partly Automated Driving | General |
| Pto Adaptor | General |
| Punks Against Discrimination | General |
| Packet Assembler Destructor | General |
| Petroleum Administration for Defense | Governmental |
| Pharmacologically Active Drug | Governmental |
| Peoples Awareness of Disabilities | Governmental |
| Preferred Arrival Date | Governmental |
| Propellant Actuated Device | Governmental |
| Preliminary Advisory Data | Governmental |
| PARDI | Indian Railway Station |
| Partido de Acción Democrática | International |
| Plan Analuz sobre Drogas | International |
| Partido Auténtico Democrático | International |
| Partido de Acci? Democr?ica | International |
| Partido Aut?tico Democr?ico | International |
| Photo Activated Disinfection | Medical |
| Pop And Drop | Medical |
| Peripheral Arterial Disease | Medical |
| Psychiatric Advance Directives | Medical |
| Physician-Assisted Death | Medical |
| Peripheral Artery Disease | Medical |
| Project Appraisal Document | Messaging |
| Production Assurance Directorate | Military and Defence |
| Payload and Delivery | Military and Defence |
| Pipe Acquisition Disorder | Military and Defence |
| Patient Administration Director | Military and Defence |
| Positional Adjustment | Military and Defence |
| Precision Aircraft Direction | Military and Defence |
| Personnel Administration for Divisions | Military and Defence |
| Pre Advisory Data | Military and Defence |
| Personal Access Device | Networking |
| Paderborn, Germany | Regional |
| Public Access Defibrillation | Regional |
| Pressure Anomaly Detection | Space Science |
| Preliminary Advisory Data (crew Data Uplink) | Space Science |
| Program Approval Document | Space Science |
| Propellant Acquisition Device | Space Science |
| Pan Am Ceremonies Venue | Sports |