sort by Rank | Alpha
| Possible Meanings | Rank |
| Airborne Separation Assurance Systems | *** |
| After School All Stars | *** |
| Another Side Another Story | *** |
| Authenex Strong Authentication System | *** |
| Association for the Advancement of Science | *** |
| Assessments in Ankylosing Spondylitis | *** |
| Australian Staffing Assistance Scheme | *** |
| Asylum Seeker Assistance Scheme | *** |
| Amsterdam Security Account System | *** |
| Aviation Safety Analysis System | *** |
| Assessment in Ankylosing Spondylitis | *** |
| Asylum Seekers Assistance Scheme | *** |
| Airborne Separation Assistance Systems | *** |
| active systemic anaphylactic shock | ** |
| AIDS Social Assertiveness Scale | ** |
| anterior spinal artery syndrome | ** |
| Advertising Standards Authority of Singapore | ** |
| Assessment of Ankylosing Spondylitis | ** |
| All Saints Altar Servers | ** |
| Alerting of Structurally Ambivalent Sequences | ** |
| Aarhus Save Agency Samsoe | ** |
| Active Sports Active Social | ** |
| Association of Southern African States | ** |
| Amercian Society of Animal Science | ** |
| Aircraft Separation Assurance System | ** |
| Aircraft Support and Services | ** |
| Archaeological Sciences of the Americas | ** |
| Analoge Spektral Analyse Systeme | ** |
| Association of Animal Scientists | ** |
| Active Scattering Aerosol Spectrometer | ** |
| Appreciation Society Appreciation Society | ** |
| Airport Surface Access Strategy | ** |
| Australian Small Activities Scheme | ** |
| American Society of Animal Scientists | ** |
| American Society for Animal Science | ** |
| Alumni Sekolah Alam Shah | ** |
| Association for Supporting Academic Societies | ** |
| Actor Scriptor Animation System | ** |
| Advanced Ship Autopilot System | * |
| ALL SOURCE ANALYSIS SYSTEMS | * |
| Arpage Security and Access Services | * |
| All Sky Astronomical Survey | * |
| Advanced Solid Axial System | * |
| Advanced Solidstate Array Spectroradiometer | * |
| A320 Stability and Support | * |
| All Source Analysis Sytem | * |
| American Sportfish Association Summit | * |
| Association of Synthetic Amorphous Silica | * |