sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Automated Telephone Response System | *** |
| Air Transport Research Society | *** |
| abbreviated Teacher Rating Scale | ** |
| Alberta Tobacco Reduction Strategy | ** |
| Air Toxics Research Strategy | ** |
| Automated TRI Reporting Software | ** |
| American Tanker Rate Schedule | ** |
| Ames Technical Reports Server | ** |
| Advanced Technology for Radar Sounding | ** |
| Arkansas Teachers Retirement System | ** |
| Automated Temporary Roof Support | ** |
| Ames Technical Report Server | * |
| Applicative Term Rewriting Systems | * |
| Automatic Temporary Roof Support | * |
| Association Togolaise pour la Recherche Scientifique | * |
| Air Toxics and Radiation Staff | * |