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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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Published:Tue Jul 07 08:15:59 EDT 2015