| Acronym | Definition |
|---|
| D2D➣Device-to-Device (communications) |
| D2D➣Disk-To-Disk (backup technology/strategy) |
| D2D➣Digital-to-Digital (converter) |
| D2D➣Day to Day |
| D2D➣Data to Decision (program) |
| D2D➣Door to Door (sales) |
| D2D➣Drive to Drive |
| D2D➣Disk to Disk |
| D2D➣Desktop to Desktop |
| D2D➣Design to Delivery (various organizations) |
| D2D➣Discovery to Delivery (various meanings) |
| D2D➣Dealer to Dealer |
| D2D➣Database to Database |
| D2D➣Department to Department |
| D2D➣District-to-District (education) |
| D2D➣Direct to Disk (recording technology) |
| D2D➣Dot to Dot |
| D2D➣Doorway to Dreams (Allston, MA) |
| D2D➣Division to Division |
| D2D➣Direct to Data (ParkerVision, Inc.) |
| D2D➣Data to Desktop |