| AAF |
Auxiliary Air Force |
| AC |
Aircraftman |
| ACW |
Aircraftwoman |
| ATC |
Air Training Corp |
| B OP |
Balloon Operator |
| BC |
Balloon Command or Centre |
| BTU |
Balloon Training Unit |
| CO |
Commanding Officer |
| Cpl |
Corporal (Junior NCO) |
| DF |
Direction Finding (Radio) |
| ENSA |
Entertainment National Service Assoc. |
| DPL |
Double Parachute Link System |
| F/Sgt. |
Flight Sergeant |
| FBB |
Free Balloon Barrage (Albino) |
| FHQ |
Flight Headquarters |
| HE |
High Explosive |
| HMS |
His Majesty Ship |
| LAC |
Leading Aircraftman |
| LACW |
Leading Aircraftwoman |
| LZ |
Low Zone (below 5,000 Feet) |
| MT |
Motor Transport |
| NAAFI |
Navy Army Air Force Institute |
| NCO |
Non Commissioned Officer |
| OC |
Officer Commanding |
| OR |
Other Ranks |
| POW |
Prisoner of War |
| RAF |
Royal Air Force |
| R Aux AF |
Royal Auxiliary Air Force |
| RAF VR |
Royal Air Force Volunteer Reserve |
| RN |
Royal Navy |
| RNVR |
Royal Navy Volunteer Reserve |
| STARFISH |
Decoy to attract enemy bombs |
| Sgt. |
Sergeant |
| SHQ |
Station or Squadron Headquarters |
| SSQ |
Station Sick Quarters |
| TA |
Territorial Army |
| WAAF |
Woman Auxiliary Air Force |
| WO |
Warrant Officer (Senior NCO) |
| WW1 |
World War (Great War 1914 – 18) |
| WW2 |
World War 2 (1939 – 1945) |
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