sort by Rank | Alpha
| Possible Meanings | Rank |
| Parliamentary Intelligence and Security Committee | **** |
| Parent Involvement at School | **** |
| pacific islands study circle | *** |
| Public Information Sub Committee | *** |
| Product Information Supply Chain | *** |
| Pandemic Influenza Steering Committee | *** |
| Primary Industry Standing Committee | *** |
| Premier International Small Cap | *** |
| Pitcairn Islands Study Centre | *** |
| Pennsylvania Invasive Species Council | *** |
| Project International Steering Committee | *** |
| Primary Industries Standing Committee | *** |
| Private Itemset Support Counting | *** |
| Performance Improvement Steering Committee | *** |
| Pioneer Insurance and Surety Corporation | *** |
| Portland Ice Skating Club | *** |
| Process Improvement Steering Committee | *** |
| Primary Industries Skills Council | *** |
| primary intrahepatic sclerosing cholangitis | ** |
| Proficiency in Survival Craft | ** |
| Pakistan International School Cairo | ** |
| Press Industry Steering Committee | ** |
| Preussag International Steel Corp | ** |
| Pilates Institute of Southern California | ** |
| Prudential Investment Securities Co | ** |
| Personal Information Security Compliance | ** |
| Prolific Internet Support Center | ** |
| Purchasing Ingredient Suppliers Conference | ** |
| Preliminary Investigation Sub Committee | ** |
| Pathetic Instruction Set Computer | ** |
| Post Implementation Safety Case | ** |
| Published by the Invasive Species | ** |
| Port Isabel Side Channel | ** |
| PROFIBUS International Support Centre | ** |
| Portuguese Instructive and Social Club | ** |
| Pre Implementation Safety Case | ** |
| Projection Industry Summit Conference | ** |
| Pacific Islander Student Commission | * |
| Polymorphic Instruction Set Computers | * |
| Pacific International Services Corp | * |
| Pharmaceutical Innovation Steering Committee | * |
| Primary Inter School Challenge | * |
| Professional Issues Steering Committee | * |
| Program for the Inspection of Steel Components | * |
| Public Interest Science Conference | * |
| pacific intl svcs corp | * |
| Pittsburgh Inline Skate Club | * |
| Product Identification Standards Committee | * |
| Program Improvement School Choice | * |
| Provincial Intersectoral Steering Committee | * |
| Phase in Steering Committee | * |
| Potentially Internally Stable Coalitions | * |
| Public Interest Student Coalition | * |
| Pitcairn Islands Study Center | * |
| Parallel Instruction Set Computing | * |
| Pacific Island Science Center | * |
| Paleolimnological Investigations of Salinity Climatic | * |
| Plant Information Systems Committee | * |
| Pooka duo Images Sound Clips | * |
| Project for Inspection of Steel Components | * |