sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Aid for Part Time Study | **** |
| ADVANCED PUBLIC TRANSPORTATION SYSTEMS | **** |
| Andhra Pradesh Technology Services | **** |
| Advanced Public Transit Systems | *** |
| Airport Port and Terminal Security | *** |
| Asia Pacific Theological Seminary | *** |
| Arab Professional Translators Society | *** |
| Advanced Public Transport Systems | *** |
| Astronomical Polarity Time Scale | *** |
| Aid for Part Time Students | *** |
| At Asia Pacific Theological Seminary | *** |
| Academy for PhD Training in Statistics | *** |
| audible pedestrian traffic signals | ** |
| Automated Performance Test System | ** |
| Automated Portable Test System | ** |
| Alternative Paths Training School | ** |
| associative pairing of tactile stimulation | ** |
| Association of Providers of Training Services | ** |
| Action Plan Tracking System | ** |
| Americas Public Television Stations | ** |
| Asia Pacific Trade Seminars | ** |
| Aerated Package Treatment Systems | ** |
| Astrochronological Polarity Time Scale | ** |
| Association of Physical Therapy Students | ** |
| Association Panafricaine Thomas Sankara | ** |
| American Patient Transport Systems | ** |
| Advanced Public Transport System | ** |
| Alliance Partner Technical Symposium | ** |
| Advanced Passenger Transport Systems | ** |
| Association for Public Television Stations | ** |
| Aerobic Package Treatment Systems | * |
| Asia Pacific Training and Simulation | * |
| Automatic Protection Test System | * |
| Alternative Paths Taining School | * |
| Americas Public TV Stations | * |
| Australasian Particle Technology Society | * |
| Advanced Programmable Test Set | * |
| Adapted to the Spatial | * |
| Automated Protocol Test System | * |
| Activity Providing Telephone Service | * |
| Aerial Profiling of Terrain System | * |
| Areas Planted to Trees or Shrubs | * |
| Automated Pit Trading System | * |