5AF	Fifth Air Force
ABC	Air Base Command
ACFH	Air Crew Fly Home (return of combat crew and their aircraft to the U.S. after close of hostilities)
Acft Cmdr	Aircraft Commander
Adm	Administration
AF	Air Force (e.g., 5AF = Fifth Air Force)
AFMSC	Loss Reason Obtained from Headquarters USAAF
ARC	Aircraft Record Card, a chronological history of each aircraft maintained by the USAAF, also called IARC for Individual Aircraft Record Card
BG	Bombardment (Bomb) Group
BS	Bombardment (Bomb) Squadron
CAC	Abbreviation for the Consolidated Aircraft Corporation
CF	Symbol used for Consolidated Aircraft Corporation factory in Fort Worth, Texas
Cmdg	Commanding
Cmdr	Commander
CNS	The radio net connecting the many far-flung units in the SW Pacific area
Cntl	Control
CO	Symbol used for Consolidated Aircraft Corporation factory in San Diego, California
DAR	Darwin Air Base, Darwin, Northern Territory, Australia, base of the 380th Bomb Group during the period August 1944 to March 1945; also used as part of the designation of missions flown by the 380th during this period
Dpty	Deputy
Eng	Engineer
Eqpt	Equipment
Exec	Executive
FEAF	Far East Air Forces
FEN	Fenton Field, Northern Territory, Australia, base of the 380th Bomb Group from May 1943 to August 1944; also used a part of the designation of missions flown by the 380th during this period
Flt	Flight
Flt Eng	Flight Engineer
FM	Date of First Mission with 380th (Month and Year only) to establish period of service; for Australian crews only
FO	Symbol used for the Ford Motor Company aircraft plant at Willow Run, Michigan
Fr	From
GA	Ground Accident
GO	General Orders, used to announce officer promotions and award of decorations
Gp	Group
Gp Cmdr	Group Commander
HAD	Abbreviation for the Hawaiian Air Depot, used to designate the Type 2 nose modification of the B-24D
Hqtrs	Headquarters
IARC	Individual Aircraft Record Card, same as ARC
IFF	Identification-Friend or Foe (a radio set that responds to a radar challenge with a code response to identify friendly aircraft)
Info	Information
Initial Deployment	First transfer of 380th personnel by aircraft or ship from the U.S. to the South West Pacific War Theatre or both
KFA	Death due to aircraft accident, includes those occurring on a combat mission but where enemy action not involved (killed in flying accident)
KGA	Death due to a ground accident (killed in ground accident)
KIA	Death due to event caused by known or supposed enemy action (killed in action)
Ldr	Leader
LEFT	Code for Assignment of Aircraft to the 5th Air Force
LM	Probable Date of Last Mission (Month and Year Only); for Australian Crews only
LORAN	LOng Range Air Navigation (a multi-station radio network for aircraft navigation)
Mech	Mechanical, Mechanic
MIA	Missing in Action, cause unknown
MOS	Military Occupational Specialty
NCO	Non-commissioned officer
NL	None Listed
OD	Olive Drab, the camouflage applied to all early aircraft
Off	Officer
OKC	Abbreviation for the Oklahoma Air Depot at Tinker Field, Oklahoma city, Oklahoma, used to designate the Type 3 nose modification for the B-24D
Opns	Operations
Opr	Operator
Original Cadre	The first group of individuals who initially formed the 380th Bomb Group
O-XXX	Serial Number of Commissioned Officer, U.S.
PA	Probable Arrival Date (Month and Year only) where records missing and supposition possible from other records
PAR	Paragraph, the section of the overall order dealing with the individual in question
POW	Prisoner of War
PR (Date), RM	Probable Return Date (Month and Year), Records Missing; supposition based on other records
RAAF	Designates a member of the Royal Australian Air Force
Radio Opr	Radio Operator
RCM Opr	Radar Countermeasures Operator
Recce	Reconnaissance Mission
RHEW, RU	Returned Home After End of War, Records Unavailable; all archived records available ceased as of 1 October 1945
RM	Records Missing
RU	Records Unavailable
SO	Special Order, the most common type of order
Spec	Specialist
SPL	Specialist
SQDN	Squadron
Sqdn Cmdr	Squadron Commander
SSN	Service Specialty Number
Stat	Statistical, Statistician
TC	Troop Carrier (e.g., To 375 TC Gp)
Tech	Technical, Technician
TRANS	Transferred from 380th to Other Units within Theatre; records missing
T-XXX	Serial Number for Flight Officer, US
UCIP	Code for Delivery to 8th Air Force, (Other Unknown Reason)
UNK	Unknown
USAAF	United States Army Air Forces
USAFFE	United States Armed Forces in the Far East
USAFP	U.S. Army Forces, Pacific
USASOS	United States Army Services of Supply
VBC	Fifth Bomber Command
VHF	Very High Frequency
VOCO	Vocal Orders of the Commanding Officer
WGA	Wounded in Ground Accident
W-XXX	Serial Number for Warrant Officer, US
X	Special Mission Crew (usually RCM)