| Abbreviation | Definition |
|---|---|
| CWO4 | Chief Warrant Officer |
| CWO4 | ief Warrant Officer |
| CWOHC | Chief Warrant Officer (hospital Corps) |
| CWOHC | ief Warrant Officer (hospital Corps) |
| CWT | ter Tender Chief Petty Officer |
| CWT | Water Tender Chief Petty Officer |
| CY | Chief Yeoman |
| CY | ief Yeoman |
| CYN | Communications Yeoman |
| CYN | mmunications Yeoman |
| DA | Dental Apprentice |
| DA | ntal Apprentice |
| DANAS | Dictionary of American Naval Aviation Squadrons |
| DC1 | Damage Controlman Petty Officer 1st Class |
| DC1 | mage Controlman Petty Officer 1st Class |
| DC2 | Damage Controlman Petty Officer 2nd Class |
| DC2 | mage Controlman Petty Officer 2nd Class |
| DC3 | Damage Controlman Petty Officer 3rd Class |
| DC3 | mage Controlman Petty Officer 3rd Class |
| DCA1 | Damage Controlman (abc Defense Man) Petty Officer 1st Class |