| Abbreviation | Definition |
|---|---|
| CVX | Next Generation Aircraft Carrier |
| CWS | Coastwise Steamer |
| CY/CY | Consignee Yard |
| CZ | Lighter-than-air Aircraft Carrier (Cruiser, Zeppelin) |
| DB | Double Bottom |
| DD | Destroyer (Destroyer type, Destroyer sub-type) |
| DDE | Escort Destroyer |
| DDH | Helicopter-carrying Destroyer (Destroyer, Destroyer, Helicopter) |
| DDK | Hunter-Killer Destroyer |
| DDR | Radar Picket Destroyer (Destroyer, Destroyer, Radar picket) |
| DDT | Training Destroyer (Destroyer, Destroyer, Training) |
| DDX | Destroyer, neXt generation |
| DE | Destroyer Escort |
| DEG | Destroyer Escort, Guided-missile |
| DER | Destroyer Escort, Radar Picket |
| DFL | Destroyer Flotilla Leader |
| DL | Destroyer Leader |
| DLG | Destroyer Leader, Guided missile |
| DLWL | Design Load Waterline |
| DM | Destroyer Minelayer |