| Abbreviation | Definition |
|---|---|
| DIR | DIRect |
| DIR | Document Information Record |
| DIRBE | Diffuse InfraRed Background Experiment (COBE satellite, 1989) |
| DIS | DISagree |
| DIS | Documentation Index System |
| DISAP | DISAPproved |
| DISASSY | DISASSemblY |
| DISC | DISCone |
| DISC | DISConnect |
| DISC | DISCrete |
| DISCH | DISCHarge |
| DISENG | DISENGage |
| DISP | DISPenser |
| DISP | DISPlay |
| DISTR | DISTRibutor |
| DIT | Data Identification Table |
| DIT | Dynamic Integrated Test |
| DIU | Data Interface Unit |
| DIU | Digital Interface Unit |
| DIW | Dead In Water |