In our collection you will encounter military terminology and acronyms. Here you can find out what they mean:

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(S)

Denotes an Officer who is qualified in both Visual Signalling and Wireless Telegraphy Duties. In a ship, an Officer qualified as above who is performing either or both these duties. (Source: Australian Navy List, 1941)

(SM)

Denotes a Senior Master. (Source: Australian Navy List, 1941)

S

Secretariat (United Nations Organisation - UNO)

S

Somalia clasp to Australian Service Medal (ASM)

S

Senior or Staff

S

Supply and Secretariat Branch (Naval)

S & T

Supply and Transport (Army)

S A

School of Artillery

S Ad O

Station Administrative Officer (Air Force)

S Am

South America

S Aust

South Australia

S Cd CO

Senior Commissioned Communication Officer (Naval)

S of D

Superintendent of Design

S of MI

School of Military Intelligence

S of S

Secretary of State (US)

S Off

Section Officer (WAAAF)

S Sjt

Staff Serjeant

S Stafford

South Staffordshire Regiment

S Supt

Senior Superintendent

S/N

Staff Nurse

S/Sgt

Staff Sergeant (a senior sergeant)

S/Smith

Shoeing Smith

SA

Small arms

SA

South Africa

SA

South Australia

SAA

Small Arms Ammunition

SAAB

Scientific Advisor to the Air Board

SAAF

South African Air Force

SAARF

Special Allied Airborne Reconnaissance Force

SABC

Siege Battery Ammunition Column

SAC

School of Army Cooperation (RAAF)

SAC

Service Aircrew Camp (RAAF)

SAC

Strategic Air Command (USA)

SACA

Supreme Allied Commander Atlantic

SACC

Supporting Arms Coordination Centre

SACEUR

Supreme Allied Commander, Europe (North Atlantic Treaty Organisation - NATO)

SACLANT

Supreme Allied Commander, Atlantic (North Atlantic Treaty Organisation - NATO)

SACO

School Army/Air Cooperation

SACO

Sino American Cooperative Organisation (USA)

SACSEA

Supreme Allied Commander South East Asia

SADF

South African Defence Forces

SADMINSO

Senior Administrative Staff Officer

SAE

Service Assisted Evacuation

SAF

Small Arms Factory

SAF

Singapore Armed Forces (Peacekeeping)

SAFEO

Safety equipment Officer

SAIF

Small Independent Action Force

Sal

Salvage

SAL

Salvation Army

SALT

Strategic Arms Limitation Treaty/Talks

Salv Offr Aust Corps

Salvage Officer, Australian Corps [First World War AIF Salvage Unit]

SAM

Surface to air missile(s)

SAMB

Scientific Adviser to the Military

San

Sanitation

SAN

School of Air Navigation (RAAF)

SAN Sect

Sanitation Section

Sandra

Beacon guiding system, RAAF (Second World War)

SANS

South African Naval Service

SAO

Scientific Advisor's Office

SAO

Senior Administrative Officer

Sap

A covered trench or tunnel dug to a point near or within an enemy position

SAP

Secure Australia Project

SAR

Search and Rescue

SAR

Semi‑automatic rifle (USA)

SARO

Search and Rescue Officer

SAS

Small Arms School

SAS

Special Air Service

SAS

Special Army Service

SASO

Senior Air Staff Officer

SASR

Special Air Service Regiment

SASS

Superintendent Army Scientific Services

SB

Siege Battery

SB

Stretcher bearer

Sb

Switchboard (USA)

SBA

Sick Bay Attendant

SBD

Scout Bomber Douglas

SBG

Small Box Girder

SBLT

Sub Lieutenant

SBMO

Senior British Medical Officer

SBNO

Senior British Naval Officer

SBR

Small Box Respirator (First World War)

SBS

Special Boat Squadron

SBS

Special Boat School (Second World War)

SBS

Special Broadcasting Unit

SBS

Special Boat Section

SC

Security Council (United Nations Organisation - UNO)

SC

Staff Captain

SC

Staff College

SC

Star of Courage

SC

Submarine Chaser

SCA

Support Command Australia (Navy)

SCAJAP

Supreme Command Allied Forces in Japan

SCAP

Supreme Commander for the Allied Powers

SCAT

South Pacific Combat Air Transport (USA)

SCD

Strategic Command Division (East Timor)

SCM

Special Courts martial (USA)

SCNO

Senior Canadian Naval Officer

SCO

Stock Control Officer

SCU

Statistical Control Unit

SCUBA

Self Contained Underwater Breathing Apparatus

SD

Special Duty (USA)

SD

Staff Duties

SD

Store/Supply Depot

SD

Service Dress

SD

Special Duties Branch (Air Force)

SDA

Seventh Day Adventist

SDBP

Seaward Defence Boat

SDC

Signal Distribution Centre

SDEV

Standard Deviation

SDI

Strategic Defence Initiative

SDIA

Select Documents on International Affairs

SDL

Special Duties List

SDO

Senior Dental Officer (First World War)

SDP

Supply Dropping Point

SDR

Special Despatch Rider

SDS

Signals Despatch Service

SDSC

Strategic and Defence Studies Centre

SDSLO

Services and Defence Science Liaison Officer

SDSS

Standard Distribution and Supply System

SDU

Survey and design Unit (RAAF)

SE

Safety Equipment

SEA

South East Asia

Sea Bees

Construction Battalions, United States Navy

Sea Check

An Examination conducted by a Senior Officer’s staff to discover if a ship or a debt within a ship meets the required standards

SEA LORDS

‘South East Asia Lake, Ocean, River, Delta Strategy’ – United States Navy task force in Mekong Delta

SEAC

South East Asia Command

SEADRAGON

Operation – Surface ship operations against Vietnam

Seaforth

The Seaforth Highlanders (Ross‑shore Buffs, the Duke of Albany's)

SEALS

Sea Air and Land (team United States Navy)

SEAMILS

SEATO (South East Asia Treaty Organisation) Military Intelligence and Logistic Forms

SEAP

SEATO (South East Asia Treaty Organisation) Publications

SEASS

South East Asia Signal School

SEASTAG

SEATO (South East Asia Treaty Organisation) Standardisation Agreement

SEATO

South East Asia Treaty Organisation

Sec

Section

Sec

Secretary

Sec

Secretariat

Sec

Second

Sec

Secondary

SEC Dept of ARMY

Secretary to the Department of the Army

SECAIR

Security Department of Air

SECDEF

Secretary Department of Defence

SECMA

Study and Evaluation of Counter Mine Activities

SECNAVY

Secretary Department of the Navy

SECO

South Eastern Command in England

SECT

Section

Sect Off

Section Officer (WRAAF - Women's Royal Australian Air Force)

SED

Single entitlement Document (unit equipment list)

Sen Chap C of E HQ AIF

Senior Chaplain (Church of England), Headquarters AIF, London [First World War AIF Chaplains Unit]

Sen Chap Meth HQ AIF

Senior Chaplain (Methodist), Headquarters AIF, London [First World War AIF Chaplains Unit]

Sen Chap OPD HQ AIF

Senior Chaplain (Other Protestant Denominations), Headquarters AIF, London [First World War AIF Chaplains Unit]

Sen Chap Pres HQ AIF

Senior Chaplain, ANZAC Mounted Division [First World War AIF Chaplains Unit]

Sen Chap Pres HQ AIF

Senior Chaplain (Presbyterian), Headquarters AIF, London [First World War AIF Chaplains Unit]

Sen Str

Senior Sister (Air Force)

SENGSO

Senior Engineering Staff Officer

Senior Sailor

A Petty Officer or Chief Petty Officer

SEOEM

Senior Executive Officer (Senior Engineering Staff Officer/Senior Maintenance Staff Officer)

SEOL

Senior Executive Officer (Legal)

SEOLEG

Senior Executive Officer (Legislation)

SER

Serial

SERN

Service number

SES

Surface effect ship(s)

SESO

Senior Equipment Officer

SEW

Safety Equipment Worker

SEWLROM

Special End of War Leave for regular Officers and men

SF

Special Forces

SF

Steam gunboat

SF

Survey Flight (RAAF)

SF

SEATO (South East Asia Treaty Organisation) Force

SFCP

Shore Fire Control Party

SFCS

Shore Fire Control Spotting

SFF

SEATO (South East Asia Treaty Organisation) Field Forces

SFFS

SEATO (South East Asia Treaty Organisation) Field Force

SFI

Special Flying Instruction

SFIC

Seventh Fleet Intelligence Centre

SFM

Sergeant Farrier Major

SFTS

Service Flying Training School (RAAF)

SG

Scots Guards

Sg C

Surgeon Captain (Naval)

SGCE

Services General Certificate of Education

SGF

Southern Group of Forces (Soviet)

SGPOs

Second Generation Peace Operations (Peacekeeping)

Sgt

Sergeant

SGU

Security Guards Unit (RAAF)

SGUARD

Security Guard

SHAEF

Supreme Headquarters Allied Expeditionary Force

SHAND

Stores Hand

SHD

Shore Defence

SHELREP

Shelling Report

SHF

Super High Frequency

SHFDF

Super High Frequency Direction Finding

SHPWRT

Shipwright/carpenter (Royal Australian Navy)

SHQ

Station Headquarters

Shwt Lt

Shipwright Lieutenant (Naval)

SI

Senior Instructor

SI

Seriously Ill

SIAF

Small Independent Action Forces

SIB

Special Investigation Branch

SIF

Selective Identification Feature

Sig

Signaler (after rank)

Sig

Signalman

SIG

Signalman

Sig C

Signal Corps (USA)

Sig C

Signal Corps/Company

Sig Coy

Signal Company

Sig Sect AETD

Signal Section, Australian Engineer Training Depot (First World War)

Sig Sect AETD

Signal Section, Australian Engineer Training Depot [First World War AIF Signals Unit]

Sig Sqn

Signal Squadron

Sig Tng Unit

Signal Training Unit [First World War AIF Signals Unit]

Sig Tp

Signals Troop

Sig Tp NZMR Bde

Signal Troop, New Zealand Engineers (also known as Signal Troop, New Zealand Mounted Rifles Brigade) [First World War New Zearland Unit]

Sig Trp Eng

Signal Troop Engineers

Sig Wire

Signal Wire used in laying communication signal lines

Sig(s)

Signal(s)

SIGCEN

Signal Centre

SIGINT

Signals Intelligence

SIGINT

Signals intelligence

SIGSOP

Signals Operator

SIM

Simulate

Sin

Sinai clasp to Australian Service Medal (ASM)

SINC

Staff In Confidence

SIO

Senior Intelligence Officer

SIO

Supervising Intelligence Officer

SIOO

Senior Inspecting Ordinance Officer

SIT

Situate

SITREP

Situation Report

SITSUM

Situation Summary

SIW

Self inflicted wound (First World War)

Sjt

Sergeant

SL

Searchlight

SL

Squadron Leader

SL

School of Languages

SL

Start Line

SL

Support Line (USA)

SLA

Supply Loading Airfield

SLAR

Side looking airborne radar

SLBM

Submarine launched ballistic missile(s)

SLCM

Sea launched cruise missile(s)

SLEP

Service life extension program

Slg Mn

Signal Man

SLICK

UH-1 utility helicopter used primarily for carrying troops, equipment or supplies. This term is used to distinguish these aircraft from UH-1 gun ships.

SLO

Senior Liaison Officer

SLOC

Sea Lines of Communication

SLP

Supply Landing Point

SLU

Special Liaison Unit

SLVL

Sea Level

SM

Secret Message

SM

Sergeant Major

SM

Soldier's Medal (USA)

SM

Survey Motor Launch

SMAINTSO

Senior Maintenance Staff Officer

SMC

Staff Message Control

SME

School of Military Engineering

SMET

Ship’s medical emergency team

SMF

Special Mobile Force

SMG

Submachine gun (USA)

SMLE

Short Magazine Lee Enfield

SMN

Seaman

SMO

Senior Medical Officer (First World War)

SMO Aust Base Dep Fr

Senior Medical Officer, Australian Base Depots, France [First World War AIF Medical Unit]

SMO Moascar

Senior Medical Officer, Moascar (also known as SMO, Australian & New Zealand Training Cadre & Details Camp) [First World War AIF Medical Unit]

SMO No 1 Command Dep

Senior Medical Officer, No 1 Command Depot [First World War AIF Medical Unit]

SMO No 4 Command Dep

Senior Medical Officer, No 4 Command Depot [First World War AIF Medical Unit]

SMO O Tng Bde

Senior Medical Officer, Overseas Training Brigade [First World War AIF Medical Unit]

SMPO

SEATO (South East Asia Treaty Organisation) Military Planning Office

SMS

Seiner Majestat Schiff (eg SMS "Emden")

SMSP

SEATO (South East Asia Treaty Organisation) Military Security Publications

SMTO

Senior Mechanical Transport Officer (First World War)

SMTO

Senior Movements and Transport Officer

SMTO 1st ANZAC Corps

Senior Mechanical Transport Officer, 1st ANZAC Corps (Senior Mechanical Transport Officer, Australian Corps) [First World War AIF Supplies and Transport AASC Unit]

SMTO 2nd ANZAC Corps

Senior Mechanical Transport Officer, 2nd ANZAC Corps [First World War AIF Supplies and Transport AASC Unit]

SMTO Aust Corps

Senior Mechanical Transport Officer, Australian Corps [First World War AIF Supplies and Transport, Australian Army Services Corps Unit]

SN

Stores Naval

SNATCH

An operation rapidly planned and executed to exploit information obtained from a prisoner of war, Hoi Chanh, or detainee concerning the location of Viet Cong or Viet Cong Infrastructure. Enemy personnel apprehended as a result of information obtained from

SNCO

Senior Non Commissioned Officer

SNI

Senior Naval Instructor

SNLR

Services no longer required

SNO

Senior Naval Officer (Transport)

SNO

Senior National Officer

SNOE

Senior Naval Officers Embarked in Merchant Ships

SNOL

Senior Naval Officer Landing

SNSO

Superintendig Naval Stores Officer

SO

Senior Officer

SO

Signals Officer

SO

Special Orders (USA)

SO

Staff Officer

SO

Standing Orders

SO (NCS)

Senior Officer (Naval Control Service)

SO (O)

Senior Officer (Operations)

SO ADS AIF Dep in UK

Staff Officer, Australian Dental Services, AIF Depots in United Kingdom [First World War AIF Medical Unit]

SO ADS Egypt

Staff Officer, Australian Dental Services, Egypt [First World War AIF Medical Unit]

SO ADS Fr

Staff Officer, Australian Dental Services, France [First World War AIF Medical Unit]

SO in C

Signal Officer in Chief

SO Sigs

Staff Officer Signals

SOA

Special Operations Australia

SOA

Speed of Advance

SOA

Staff Officer Air Plans

SOA

Spectrometric Oil Analysis Programme

SOACCT

Staff Officer Accountant

SOAD

Staff Officer Air Defence

SOADMIN

Staff Officer Administrative Services

SOADS

Staff Officer, Australian Dental Service (First World War)

SOAG

Senior Officer Assault Group

SOAL

Spectrometric Oil Analysis Laboratory

SOAOC

Staff Officer to AOC

SOARM

Staff Officer Armament

SOAS

Spectrometric Oil Analysis System

SOAT

Staff Officer Air Training

SOC

Scout Observation Curtis

SOC

Struck Off Strength (RAAF)

SOCAI

Staff Officer Catering

SOCAS

Staff Officer to the Chief of the Air Staff

SODCAS

Staff Officer to the deputy chief of the air staff

SODS

Staff Officer Dental Service

SOE

Special Operations Executive (Special Forces) (British forces, Second World War)

SOEDS

Staff Officer Education Services

SOENG

Staff Officer Engineering

SOENGS

Staff Officer Engineering Services

SOFS

Staff Officer Fire Service

SOG

Small Operational Group

SOGD

Staff Officer Ground Defence

SOGT

Staff Officer Ground Training

SOI

Signal Operation Instructions (USA)

SOI&RS

Staff Officer Invalided and Returned Soldiers

SOINTELL

Staff Officer Intelligence

SOK

Supply authorised (USA)

SOLOG

Standards Operational and Logistical

SOLS

Staff Officer Legal Service

SOM

Senior Official Meetings

Som LI

The Somerset Light Infantry (Prince Albert's)

SOMAINTS

Staff Officer Maintenance Service

SOME

Senior Ordnance Mechanical Engineer

SOMP

Staff Officer Maintenance Planning

SOMS

Staff Officer Medical Services

SOOPS

Staff Officer Operations

SOORG

Staff Officer Organisation

SOP

Standing Operating Procedure (USA)

SOP

Standard Operating Procedure

SOPA

Senior Officer Present Alfoat

SOPAC

South Pacific Area

SOPSYCHS

Staff Officer Psychological Services

SORA

Staff Officer Royal Artillery

SORADA

Staff Officer Radio Air

SORE

Staff Officer Royal Engineers

SOREC

Staff Officer Recruiting

SORO

Staff Officer repair and overhaul

SORS

Staff Officer Strike and Reconnaissance

Sortie

The flight of one aircraft from takeoff to touchdown

SOS

Struck off strength

SOS

A wireless code signal indicative of distress

SOS

Service of Supplies

SOS

Staff Officer Supplies

SOTELENG

Staff Officer Telecommunications Engineering

SOTP

Staff Officer Training Policy

SOTSA

Staff Officer Technical Spares Assessing

Sound Powered Telephone

A Communications system which operates independently of an external power source

Sov

Soviet

SOW

Status of Women (United Nations Organisation - UNO)

SOWEAPENG

Staff Officer Weapons Engineering

SOWKS

Staff Officer Works

SP

Selection of personnel

SP

Self‑propelled

SP

Senior Psychologist (Admiralty)

SP

Service Police

SP

Starting Point

Sp

Spain

Sp

Service Police

Sp

Special Branch (Naval)

Sp

Special Duties Officer (RAF)

Sp Bn ABN

Support Battalion Airborne Brigade (USA)

Sp Coy

Support Company (Vietnam)

SPAR

Special Agent Report

Spars

Women's Reserve of the United States Coast Guard (name taken from motto)

SPE

Service Protected Evacuation

SPEC

Specify

Spec Serv

Special Service

Sponson

Projecting gun platform (RAAF Second World War)

SPORE

Singapore

Spr

Sapper

Spt

support

SPTF

Sea Plane Training Flight

SPTS

Sea Plane Training Squadron

SPU

Service Police Unit (RAAF)

SPWRT

Shipwright/carpenter (Royal Australian Navy)

SQMS

Staff Quartermaster‑Sergeant

Sqn

Squadron

Sqn Ldr

Squadron Leader

Sqn Off

Squadron Officer (WRAAF - Women's Royal Australian Air Force)

Sqn QMS

Squadron Quartermaster Sergeant

SR

Sound Ranging (USA)

SR

Supplementary Reserve

SRA

Surgeon Rear Admiral

SRAM

Short range attack missile(s)

SRBM

Short range ballistic missile(s)

SRC

Scientific Research Committee

SRD

Services Reconnaissance Department. Cover name for Special Operations Australia. Allied Intelligence Bureau Second World War Supply Reserve Depot.

SRECON

Strike Reconnaissance

SRG

Sound Ranging

SRH

Supply Railhead

SRP

Supply Refilling Point

SRT

Short Range Transport

SS

Submarine (Ship Prefix)

SS

Steamship

SS

Schutz Staffel (Guard Detachment/Protection Squad – German, Second World War)

SS

Selective Service (USA)

SS

Signals school (RAAF)

SS

Staff School

SS

Stores Section (Vietnam War)

SS Corporal

Shoeing Smith Corporal

SS SGT

Saddler Sergeant

SS(C/I)

Submarine(s) (coastal/inshore)

SSAFA

Soldiers, Sailors and Airmen’s Families Association (British)

SSAHA

Sailors, Soldiers and Airmen Home Association

SSB

Ballistic missile submarine(s)

SSB

Single Side Band

SSB

Costal Submarine

SSB

Short Service Commission

SSBM

Nuclear fuelled ballistic missile submarine(s)

SSD

Special Sea Duty men – Duty positions for specialised personnel when coming alongside, sailing, or in confined waters

SSE

Shape the Strategic Environment

SSFB

Standing Sea Fire Brigade

SSG

Guided Missile Submarine

SSGN

SSN (nuclear fuelled submarines) with dedicated non ballistic missile launchers

SSI

Standing Signals Instructions

SSK

Anti Submarine Submarine

SSM

Squadron Sergeant Major

SSM

Staff Sergeant Major

SSM

Surface to surface missile(s)

SSN

Nuclear fuelled submarine(s)

SSO

Senior Supply Officer (First World War)

SSO

Special Service Officer (RAF)

SSO

Staff Signals Officer (Naval)

SSO

Ships Standing Orders

SSO 2nd Aust Div

Senior Supply Officer, 2nd Australian Division [First World War AIF Supplies and Transport AASC Unit]

SSO 5th Aust Div

Senior Supply Officer, 5th Australian Division [First World War AIF Supplies and Transport AASC Unit]

SSO Aust Mtd Div

Senior Supply Officer, Australian Mounted Division [First World War AIF Supplies and Transport AASC Unit]

SSO NZ & Aust Div

Senior Supply Officer, New Zealand and Australian Division [First World War AIF Supplies and Transport AASC Unit]

SSQ

Station Sick Quarters

SSR

Radar Picquet Submarine

SST

Submarine Sound Signaling Apparatus

SSUS

hipping and Stores Unit (RAAF)

SSZ

Specified Strike Zone. Specific unpopulated areas of heavy jungle or swampland which could be cleared for firing for a certain period if US military ground clearance had been obtained.

ST, S&T

Supplies and transport

STA

Septic traumatic abrasions (First World War)

Sta

Station

STABLEDOOR

Operation – Defense of South Vietnam ports against underwater attacks

Stalag

Stammlager (German) - Prisoner of war camp for other ranks

STANAG

Standardisation Agreement NATO

STAR

Specialised Training and Reassignment (USA)

STAR

Specialised Training and Reassignment (USA)

START

Strategic Arms Reduction Talks

START

Strategic Arms Reduction Talks

STD

Steward (after rank)

STD

Standard

STF

Special Transport Flight (RAAF)

Stf

Staff (USA)

STI

Special Technical Instruction

STM

Storeman

STM

Statute Mile

Stmn Tech Ord

Storeman, Technician, Orderly (Peacekeeping)

Stn

Station

STO

Sea Transport Officer

STOL

short take off and landing

STOVL

Short take off, vertical landing

STPT

Strategic Transport (Aircraft)

STR

Strength

Stra Tr

Strategical Reconnaissance

STRAT

Strategic

STS

Sea Transport Staff

STT

School of Technical Training (RAAF)

STU

School of technical training (RAAF)

STU

A form of Asdic, a particular kind of hydrophone

STUFF

Ships taken up from trade

Sturm Abteilung

Storm troops, brown shirts

STWD

Steward

SU

Signals Unit (RAAF)

SU

Stores Unit (RAAF)

Sub

Sub Lieutenant (Naval)

SUB

Submarine

Sub lieutenant (D)

Sub lieutenant (dental)

SUBJ

Subject

Subm

Submarine (USA)

SUBOR

Subordinate

SUBSCR

Subscribe

SUBT

Substitute

SUBT

Substantive

Suffolk

The Suffolk Regiment

SUGW

Surface to underwater guided weapon(s)

SUM

Surface to Underwater Missile

Sup

Supply/Supplies

Sup O

Supply Officer

Sup Pl

Supply Platoon (Vietnam War)

SUPDEP

Department of Supply

SUPDEP

Supply Department

Superhook

CH-54 cargo helicopter. Also known as Skycrane.

SUPINTREP

Supplementary Intelligence Report

SUPP

Supply Point

Supt

Superintendent

SUR

Sydney University Regiment

SURFIN

Surface Finisher

Surreys

The East Surrey Regiment

Surv

Survey (USA)

Surv

Survival

SURVL

Surveillance

SV

Stores Vittling

SvC

Service Command (USA)

SVETS

Services Vocational and Educational Training Scheme

SVN

South Vietnam

SVN DET

South Vietnam Detachment

SVR

Service

Svy

Survey

SW

Secretary of War (USA)

SW

Shrapnel Wound

Sw

Sweden

SWB

The South Wales Borderers

SWB

Short Wheelbase

Swbd

Switchboard

Switz

Switzerland

SWP

South West Pacific

SWP(A)

South West Pacific Area

SWPA

South West Pacific Area

SWR

Senior WRAN (Women's Royal Australian Navy)

SWRIGHT

Shipwright

SWS

Shore Wireless Service, RAN

SWT

School of Water Transport (Second World War)

Sy

Security (after rank)

SY

Singals Yeoman. The senior visual communications sailor on board.

SYNC

Synchronize

SYS

System