sort by Rank | Alpha
| Possible Meanings | Rank |
| Programme on International Policy Attitudes | **** |
| Protection of Privacy Act | *** |
| Palestine Investment Promotion Agency | *** |
| Preterm Infants Parents Association | *** |
| Palestinian Investment Promotion Agency | *** |
| Photon Induced Positron Annihilation | *** |
| Public Information Policy Analysis | *** |
| Personal Information Privacy Act | *** |
| Pharmaceutical Information and Pharmacovigilance Association | *** |
| People in Peril Association | *** |
| Primary Inventory of Phonological Awareness | *** |
| pars intermedia pituitary adenoma | ** |
| platelet iodinated protein A | ** |
| platelet-iodinated protein A | ** |
| Pacific Intellectual Property Association | ** |
| Public Interest Public Airwaves | ** |
| Partners in Policymaking of Alabama | ** |
| platelet iodinated protein A test | ** |
| pengukuhan integriti perkhidmatan awam | ** |
| Pacific Industrial Property Association | ** |
| pyruvate, inosine, disodiumphosphate and adenine | ** |
| Publication of the Illinois Philological Association | ** |
| Personal Information Protection Acts | ** |
| Pharmaceutical Information Pharmacovigilance Association | ** |
| Pacific Islands Producers Association | ** |
| Portland Interhospital Physicians Association | ** |
| poetry is public art | ** |
| Pran Indo Permata Abadi | * |
| Pulsed Integrating Pendulous Accelerometer | * |
| Pipelines and Informed Planning Alliance | * |
| Palestinian Israeli Peace Alliance | * |
| Plastics Industry Pipe Association | * |
| Post Investment Performance Appraisal | * |
| Pulse Integrating Pendulum Assembly | * |
| Pulse Integrating Pendulum Accelerometers | * |