Abbreviations Used in Text and Appendixes

Adm
Admiral
Addees
Addresses
ALNAV
All Navy
AirRon
Air Squadron
A/CNO
Assistant Chief of Naval Operations
BatDiv
Battleship Division
BB
Battleship
BasFor
Base Force
Bdcst
Broadcast
CA
Heavy Cruiser
C/A
Cryptanalysis
CarDiv
Carrier Division
Cdr
Commander
CINCAF
Commander-in-Chief, Asiatic Fleet (US)
CINCPAC
Commander-in-Chief, Pacific Fleet (US)
CINC2
Commander in Chief, Second Fleet (IJN)
CL
Light Cruiser
CNO
Chief of Naval Operations, OPNAV
Coll
Collective
COMINT
Communications Intelligence
COMSEC
Communications Security
COM-14
Commandant, 14th Naval District (Hawaii)
COM-16
Commandant, 16th Naval District (P.I.)
ComCarDiv
Commander, Carrier Division
ComUnit
Communications Unit
COS
Chief of Staff
COSCombined
Chief of Staff, Combined Fleet
COS2
Chief of Staff, Second Fleet
CruDiv
Cruiser Division
CV
Fleet Carrier
CVL
Light Carrier
DD
Destroyer
DesRon
Destroyer Squadron
DF
Direction Finding
DNC
Director of Naval Communications (OP-20)
DNI
Director of Naval Intelligence (OP-16)
DOE
Division of Effort
FECB
Far East Combined Bureau
1stAirFltStf
First Air Fleet Staff
1stSecCh
first Section Chief
Flt
Fleet
GC&CS
Government Code and Cipher School
GD
Guard District
GdDiv
Guard Division
Hydro
Hydrograhic
InfBde
Infantry Brigade
InfDiv
Infantry Division
Majcom
Major Command
MI
Military Intelligence

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MilPrep
Military Preparations
Msgs
Messages
NavalAux
Naval Auxiliaries
NavalSec
Naval Section
ND
Naval District
NGS
Naval General Staff
NTR
Nothing to Report
OIC
Officer in Charge
ONI
Office of Naval Intelligence
OPNAV
Chief of Naval Operations
ORANGE
Japan
OTRG
On the Roof Gang
PBY
Amphibious Patrol aircraft
P.H.
Pearl Harbor
RCA
Radio Corporation of America
R/Adm
Rear Admiral
Reg't Grp
Regimental Group
RI
Radio Intelligence
RIP
Registered Intelligence Publication
RNO
Resident Naval Officer
Scty
Secretary
SECNAV
Secretary of the Navy
SEF
Southern Expeditionary Force
6FLT
Sixth Fleet
SIGINT
Signals Intelligence
SRH
Special Research Histories
SS
Submarine
T/A
Traffic Analysis
Tech Bur
Technical Bureau
Tfc
Traffic
T/I
Traffic Intelligence
Tokyo Comms
Tokyo Communications Unit
UK
United Kingdom
VAdm
Vice Admiral
Yrd
Yard

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Table of Contents


Transcribed and formatted by Patrick Clancey