| A-2
| Intelligence officer or section of an air staff |
| AAA
| Antiaircraft artillery |
| AAR
| After action report |
| Abwehr-Schlacht Im West
| Defensive Battle in the West |
| AIB
| Armored infantry battalion |
| Anlage
| Appendix or annex |
| Ann.
| Annex |
| AT
| Antitank |
| Aufmarschanweisung
| Revised outline plan |
| AW
| Aircraft warning; automatic weapons |
| BAR
| Browning automatic rifle |
| Bn
| Battalion |
| CATOR
| Combined Air Transport Operations Room |
| CCA
| Combat Command A |
| CCB
| Combat Command B |
| CCR
| Combat Command Reserve |
| Chasseurs Ardenais
| Belgian military unit |
| Christrose
| One of several code names for the Ardennes offensive |
| CIC
| Counter Intelligence Corps |
| C-in-C
| Commander in Chief |
| CO
| Commanding officer |
| Cp
| Command post |
| DAGGER
| Ninth Army operation intended to clear the Germans from the west bank of the Roer River once the dams were destroyed. |
| Div
| Division |
| DSC
| Distinguished Service Cross |
| Engr
| Engineer |
| Ersatzheer
| Replacement Army |
| ETO
| European Theater of Operations |
| FA
| Field Artillery |
| Feldherr
| Great general |
| Festung
| Fortress |
| Feuerwalze
| Rolling barrage |
| Flak
| Fliegerabwehrkanone (antiaircraft artillery gun) |
| Fremde Heere Ost
| OKH Intelligence Section East |
| Frontsoldat
| Front-line fighter |
| Fuehrer Reserve
| Central officers' reserve |
| Fusilier battalion
| Separate infantry battalion performing both reconnaissance and support in German division |
| FUSA
| First United States Army |
| G-2
| Intelligence section of divisional or higher staff |
| G-3
| Operations section of divisional or higher staff |
| G-4
| Supply section of divisional or higher staff |
| Greif
| German deception operation in support of the Ardennes counteroffensive |
| Herbstnebel
| Autumn Fog (Army Group B plan) |
| I and R
| Intelligence and Reconnaissance |
| Inf
| Infantry |
| Interv
| Interview |
| Jabo
| German slang for jagd-bomber (fighter-bomber) |
| Jnl
| Journal |
| Kampfgruppe
| German combat group of variable size |
| K-Tag
| 12 December |
| KTB
| Kriegstagebuch (war diary) |
| L-Tag
| 13 December |
| Martin
| Code name applied to operations plan drawn up by OB WEST for Wacht am Rhein for submission to conference at headquarters Army Group B on 27 October 1944 |
| Nebelwerfer
| Multiple rocket projector |
| Null Tag
| D-day (16 December) |
| Oberquartermeister
| General staff officer at headquarters of an army (in charge of supply and administration) |
| OB WEST
| Oberbefehlshaber West (Commander in Chief West or his headquarters) |
| OKH
| Oberkommando des Heeres (Army High Command) |
| OKL
| Oberkommando der Luftwaffe (Luftwaffe High Command) |
| OKW
| Oberkommando der Wehrmacht (Armed Forces High Command) |
| OMAHA Beach
| Normandy beach assaulted by troops of U.S. V Corps, 6 June 1944 |
| Ord
| Ordnance |
| O-Tag
| D-day (16 December) |
| Panzerfaust
| Recoilless German antitank rocket, hand-carried |
| POL
| Petrol (gasoline), oil, and lubricants |
| POW
| Prisoner of war |
| RCT
| Regimental combat team |
| Regts
| Regiments |
| Reichsautobahnen
| The German superhighway system |
| Reichsbahn
| German state railroads |
| S-2
| Intelligence officer or section of regimental or lower staff |
| S-3
| Operations officer or section of regimental or lower staff |
| Sec
| Section |
| SHAEF
| Supreme Headquarters, Allied Expeditionary Force |
| SHAPE
| Supreme Headquarters, Allied Powers, Europe |
| SS
| Schutzstaffel (Elite guard) |
|
| |
| TAC
| Tactical Air Command |
| TC
| Troop carrier |
| TD
| Tank destroyer |
| T/E
| Tables of equipment |
| T/O&E
| Tables of organization and equipment |
| TOT
| Time on target, a method of timing artillery fire from various points to fall on a given target simultaneously |
| TUSA
| Third United States Army |
| VHF
| Very high frequency |
| V-Leute
| German agents |
| Volksdeutsche
| Citizens of a country other than Germany who were considered Germans racially |
| Volkssturm
| A people's militia, partially organized in one of the last steps of German mobilization for total war |
| Wacht am Rhein
| Watch on the Rhine (Ardennes code name) |
| Waffen-SS
| A mechanized Army-type force originally made up of volunteers from Nazi party organizations |
| Wehrmacht
| German Armed Forces |
| WFSt
| Wehrmachtfuehrungsstab (Armed Forces Operations Staff) |
| Werfer
| Rocket projector |
| (-)
| Understrength |
