sort by Rank | Alpha
| Possible Meanings | Rank |
| Polish Association for Standards in English | *** |
| Partnership for After School Education | *** |
| Protein Array Software Environment | *** |
| Polish Association for the Study of English | *** |
| Programs for Academic Support and Enrichment | *** |
| Portable Application Solution Environment | *** |
| Prosopography of Anglo Saxon England | *** |
| Physical Activity Scale for the Elderly | *** |
| Parents Advocating Special Education | *** |
| Programme for Academic and Sporting Excellence | *** |
| Panasonic Automotive Systems Europe | ** |
| Parallel Applications in Statistics and Economics | ** |
| Program in American Studies and Ethnicity | ** |
| partial arterial splenic embolization | ** |
| Performance Against Seed Expectations | ** |
| Portable Applications Solutions Environment | ** |
| Physical Activity Scale for Elderly | ** |
| Pacemaker Selection in the Elderly | ** |
| Postini Anti Spam Engine | ** |
| Pedagogical Approach to Sport Education | ** |
| Parents Assisting Special Educators | ** |
| Policy Analysis and System Evaluation | ** |
| Physical Activity Scale in the Elderly | ** |
| Physical Activity Survey for the Elderly | ** |
| Premier Animal Science Events | ** |
| Pot Atom and Step Economy | ** |
| Professional Awareness in Software Engineering | ** |
| Program to Advance Science Education | ** |
| Personal Assistant for Software Engineers | ** |
| Pennsylvania Association for Safety Education | ** |
| Pulse Association of the South East | ** |
| Parents in Action on Special Education | ** |
| Program for Advanced Studies in Education | ** |
| Public Assistance Savings Exclusions | ** |
| Pacific Atmospheric Sulfur Experiment | ** |
| Percorso Accoglienza Studenti Erasmus | ** |
| Polska Akademia Stomatologii Estetycznej | ** |
| Pilipino Americans in Science and Engineering | ** |
| Purdue Alumni Student Experience | ** |
| Psychiatric Assessment Services for the Elderly | ** |
| Parents and Students Empowerment | ** |
| Parents Advocating for Special Education | ** |
| Principal Apportionment and Special Education | ** |
| Pure Audio Sound Engine | * |
| Parent Advisors for Special Education | * |
| Peaje Automatico Sin Espera | * |
| Planning and Allocation School of Excellence | * |
| Parents as Sexuality Educators | * |
| Partnership for After School Enrichment | * |
| Populations Affiliations and Service Entitlements | * |
| Positive Attitude Super Effort | * |
| Project to Advance Science Education | * |
| Pacific After School Enrichment | * |
| Partnership for A Sustainable Environment | * |
| PERFORMANCE APPRAISAL FOR STATE EMPLOYEES | * |
| Population Awareness and Sex Education | * |
| Palletized Airborne Support Equipment | * |
| Ploss Associates Safety and Environment | * |