| VADP | Vice Admiral Dover Patrol |
| RNAS | Royal Naval Air Service |
| PMO | Principal Medical Officer |
| How | Howitzer |
| Focsle | Forecastle |
| F-top | Foretop |
| TBD | Torpedo Boat Destroyer |
| RMA | Royal Marine Artillery |
| RMLI | Royal Marine Light Infantry |
| ML | Motor Launch |
| CMB | Coastal Motor Boat |