sort by Rank | Alpha
| Possible Meanings | Rank |
| Area Agency on Aging Disability | *** |
| Athletic Association of America DAAA | *** |
| Actions and Appeals Division | *** |
| Athletic Association of the Deaf | *** |
| aromatic L-amine acid decarboxylase | ** |
| aromatic L-amino acid decarboxylase | ** |
| aromatic-L-amino acid decarboxylase | ** |
| Academy of Arts Architecture and Design | ** |
| Arts Architecture and Design | ** |
| Alamo Area Aquatics Diving | ** |
| Asian Academy of Aesthetic Dentistry | ** |
| Academy of Aesthetic Dentistry | ** |
| American Association of the Deaf | ** |
| Athletic Association for the Deaf | ** |
| All Arms for Air Defense | * |
| African Am Afri Diaspora | * |
| Apparent Amino Acid Digestibility | * |
| Anemia Associated with Androgen Deprivation | * |
| Airborne Anti Armour Defence | * |
| Age-Affected Attention Deficiency | * |
| Amateur Astronomers Association of Delhi | * |
| American Athletic Association of the Deaf (now United States of America Deaf Sports Federation) | * |
| Association of Automotive Aftermarket Distributors | * |