| Abbreviation | Definition |
|---|---|
| ADA | Another Darn Attorney |
| ADA | Another Dumb Acknowledgement |
| ADA | Attorneys Dreams Answered |
| ADAM | A Dame Attractive Man |
| ADB | A Dying Bank |
| ADB | Alien Drum Bunny |
| ADB | Antediluvian Doppler Boustrophedron |
| ADC | Acronym Development Company |
| ADD | A Dumb Dog |
| ADD | Ain't Denyin Dysfunction |
| ADD | American Dream Disorder |
| ADD | Americans for Donald Duck |
| ADD | Another Darn Democrat |
| ADDIDAS | All Day I Dream About Sports |
| ADDMATH | Abusive.Downright.Deathly. Mental.Abuse.To.Humans |
| ADDMATH | Abusive.Downright.Deathly. Mental.Abuse.To.Humans |
| ADEMCO | Another Device Engineered Mainly To Cause Overtime |
| ADHD | A Dead Hen's Den |
| ADHD | All Died Hot Dudes |
| ADHD | Allways Direct, Hardly Diplomatic |