sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Procurement Survey Standardization Initiative | **** |
| Program Seeks to Inspire | *** |
| Phosphorous Sulfur and Silicon | *** |
| Program Studi Sistem Informasi | *** |
| Plug in Storage Systems Inc | *** |
| Persatuan Sepakbola Seluruh Indonesia | *** |
| Peace Science Society International | *** |
| Produce Safety Security International | *** |
| Physician Sales and Services | *** |
| Puget Sound Spine Institute | *** |
| Plasma Science Society of India | ** |
| polar strength strain index | ** |
| Prostatitis Symptom Score Index | ** |
| psoriasis scalp severity index | ** |
| Public Safety Systems Inc | ** |
| Perry Slingsby Systems Inc | ** |
| Public Safety Systems Incorporated | ** |
| peak systolic wall stress index | ** |
| Private Sector Support Institutions | ** |
| Public Social Security Institutions | ** |
| Protein Secondary Structure Identification | ** |
| Physicians and Surgeons for Scientific Integrity | ** |
| PTSD Symptom Scale Interview | ** |
| Physician Sales and Service Inc | ** |
| Project Server Support Inc | ** |
| Public Service Summer Internships | ** |
| Penn State Summer Institute | ** |
| Poultry Science Summer Institute | ** |
| Product Support Services Inc | ** |
| Public Social Security Institution | ** |
| Power Systems Solutions Inc | ** |
| Packaged Software and Systems Integration | ** |
| Pneumonia Specific Severity of Illness | ** |
| Philippine Standard Shipmanagement Inc | ** |
| Professional Systems Synergy Inc | ** |
| Public Service Summer Internship | ** |
| Phase Shifting Speckle Interferometer | ** |
| Political Subdivision Sovereign Immunity | ** |
| Puget Sound Special Investigators | ** |
| Packaged Software Selection Implementation | ** |
| Patient Support Services Inc | ** |
| Performance Step Salary Increase | ** |
| Permanent Shear Stability Index | ** |
| Pharmacy Software Solutions Inc | ** |
| Plastic Surgery Specialists Inc | ** |
| Primary School Sports Initiative | ** |
| Packers Sanitation Services Inc | ** |
| Performance Salary Step Increases | ** |
| Pre School Screening Instrument | ** |
| Platte Senior Services Inc | * |
| Political System Stability Index | * |
| Products Sales and Servicing Indemnity | * |
| Prostatitis Symptom Severity Index | * |
| Peninsula Sanitary Service Inc | * |
| Presbyterian Senior Services Inc | * |
| Performance Security and Social Impact | * |
| Personal Systems Services Inc | * |
| Physician Support Services Inc | * |
| Public Safety Scuba Instructor | * |
| Punjab Stainless Steel Industries | * |
| Parmly Sensory Sciences Institute | * |
| Past Sixteen Science Issues | * |
| Perceived Social Support Inventory | * |
| Personal Soft Skills Inventory | * |
| Portland Security Services Inc | * |
| Professional Search Staffing Inc | * |
| Pakistan Sustainable Sugar Initiative | * |
| Peninsula Sanitary Services Inc | * |
| Posterior Segmental Spinal Instrumentation | * |
| Problem Solving Style Inventory | * |
| Procrastination Self Statement Inventory | * |
| Production Satellite Services Inc | * |
| Programs Such as Summer Internship | * |
| Pacific Sulfur Stratus Investigation | * |
| Penn State Sports Index | * |
| Personalized Service Scuba Instrument | * |