Crew Position
| AE | Aerial Engineer |
| BOM (B) | Bombardier |
| BTG (BT) | Ball Turret Gunner |
| COM (COM/P) | Command Pilot Position |
| CP | Copilot |
| LWG (LW) | Left Waist Gunner |
| MIC (MO) (RAD) | Radar Nav (Mickey Operator) |
| MO (MIC) (RAD) | Radar Nav (Mickey Operator) |
| NAV (N) | Navigator |
| NG | Nose Gunner / Togglier |
| P | Pilot |
| RAD (MIC) (MO) | Radar Nav (Mickey Operator) |
| ROG (R) | Radio Operator / Gunner |
| RWG (RW) | Right Waist Gunner |
| TTE (E) | Top Turret Gunner / Engineer |
| TG (T) | Tail Gunner |
| TOGG (TOG) | Togglier / Nose Gunner |
| WG (W) | Waist Gunner |
Crew/Aircraft Status
| CL | Crash landing |
| CPT (CT) | Completed tour |
| DUR | On base for duration of War |
| EVA (EVAD) (EVADEE) | Evader / Evaded |
| ESC | Escaped |
| FEH | Flying at end of hostilities |
| GND | Ground personnel |
| IIC | Injured in crash |
| INT | Interned in neutral country |
| KIA | Killed in action |
| KIC | Killed in crash |
| FTR | Failed to return |
| LWA | Lightly wounded in action |
| MIA | Missing in action |
| NOC (NC) | No other category or status |
| POW | Prisoner of war |
| REC | Rescued |
| RFS | Removed from flight status |
| RZI (RZOI) | Returned to zone of interior |
| SAL | Salvaged |
| SWA (SWIA) | Severely wounded in action |
| UNK | Unknown |
| WIA | Wounded in action |
| XTF | Transferred out of unit |
| XFER | Transferred out of group |
Target
| AC | Aircraft |
| AF | Airfield |
| CLS | Claims of enemy destroyed |
| IP | Initial Point |
| LR | Last resort target |
| MT | Motor transport |
| MY | Marshalling yard |
| NOBALL | V1 buzz / V2 rocket site |
| ST | Secondary target |
| TA | Target area |
| TO | Target of opportunity |
Aircraft Database
| BOMB | Aircraft struck by bomb |
| DOW | DOW Field, Bangor, Maine |
| E&E | Escape and evasion report number |
| EVD | Evaded capture – Escaped |
| FTO | Failed to take off |
| FTR | Failed to return |
| FTR LOC | Failed to return – landed on continent |
| FTR MID | Failed to return – mid-air collision |
| FTR OW | Failed to return – last seen over water |
| INT | Interned in neutral country |
| KIA | Killed in action |
| KIS | Killed in service – non combat |
| LAG | Luftwaffe aerial activity |
| MACR | Missing Air Crew Report number |
| MID | Mid-air collision |
| NCS | Non-combat sortie |
| POW | Prisoner of war |
| RE? | Returned early – reason unknown |
| REM | Returned early – mechanical |
| REO | Returned early – not mechanical |
| REP | Repatriated |
| RES | Returned early – scheduled spare |
| RFO | Returned from sortie |
| RMC | Returned to military control |
| STA 139 | Thorpe Abbotts Airfield, UK |
| TOA | Takeoff or assembly incident |
| WIA | Wounded in action |
| WIS | Wounded in service – non combat |
