| Abbreviation | Definition |
|---|---|
| ADU | Analog Digital Units |
| ADU | Analog to Digital Unit |
| ADU | analog to digital units |
| ADU | Another Drunken Underkaing |
| ADU | Appliance Distributors Unlimited |
| ADU | Application Data Unit |
| ADU | Arizona Driving Universe |
| ADU | Array Diagnostic Utility |
| ADU | Artistic Dance Unlimited |
| ADU | Audience Deficiency Unit |
| ADU | Automatic Dialing Unit |
| ADUG | Abu Dhabi United Group |
| ADUI | Application Data Unit Information |
| ADULT | Acro Dermato Ungual Lacrimal Tooth |
| ADULTIZE | Adultization |
| ADULTIZE | Adultized |
| ADULTIZE | Adultizing |
| ADULTIZE | AdultSize |
| ADUN | Ahli Dewan Undangan Negeri |
| ADUS | Accessory Dwelling Units sometimes |