| Abbreviation | Definition |
|---|---|
| ADEF | Apprentissage Didactique Evaluation Formation |
| ADEF | Arbeitskreis Deutsche England Forschung |
| ADEGUI | Adeguarmi |
| ADEGUI | Adeguino |
| ADEI | American Diamond Exchange Incorporated |
| ADEI | Asosiasi Digital Entrepreneur Indonesia |
| ADEL | Ambrose Diaphonic Ear Lens |
| ADELE | Airborne Detector for Energetic Lightning Emissions |
| ADEM | Acute Disseminated Encephalomyelitis Demektir |
| ADENOIDECTOMY | adenoidectomies |
| ADEO | Assistant Deputy Executive Officer |
| ADEO | Assistant District Election Officer |
| ADEP | Adobe Digital Enterprise Platform |
| ADEP | Adolescent Diversion Education Program |
| ADEP | Alcohol and Drug Education Program |
| ADEP | Alcohol and Drug Education Programs |
| ADEP | Alcohol Drug and Education Program |
| ADEP | Association d Entraide des Polios |
| ADEPT | Administrative Data Entry for Processing Transmission |
| ADEPT | Adolescent Development of Emotions and Personality Traits |