Since 1998, the Casia Corporation Holland have been working on The Definitive TLA Wörterbuch to help people find their way in the ever growing intellectual chaos caused by the late-twentieth century tendency to use as many acronyms in daily communication as possible. Especially acronyms with a length of three letters have been and continue to be immensly popular, not only in Information and Communication Technology circles, but also among people in more mundane fields of labour; a tendency that has mushroomed with the advent of mobile communication and the combined growing popularity of Short Message Services.

At present, there are 7499 TLAs in the database. Of these, 4481 are distinct, out of 17576 possible (25.49%).

Please click on a bar in the diagram that is displayed below, or enter a search-string.

S
SAA		Stichting Afzetbevordering Asperge
		Systems Application Architecture
SAC		Sectorale Adviescolleges
		Strategic Air Command
		Supreme Allied Commander
SAD		Social Anxiety Disorder
		Standard American Diet
		System Architecture Definition
SAE		School of Audio Engineering
		Self-Adressed Enveloppe
		Society of Automotive Engineers
SAF		San Adreas Fault
		Self Appraisal Fatigue
		Sustainable Aviation Fuel
SAG		Sammie America's Gasphetti
		Screen Actors Guild
SAK		Secure Attention Key
		Studien zur Altagyptischen Kultur
SAM		Severe Accident Management
		Single Abstract Method
		Single App Mode
		Surfcace to Air Missile
SAN		Storage Area Network
SAO		Session At Once
SAP		Safety Assessment Principles
		Silverlight Application Package
		Sintered Aluminium Powder
		Social Action Party
		Socialistiese Arbeiders Partij
		Special Access Programmes
		Stereo Audio Processing
		Sub Atomic Physics
		Systeme, Anwendungen & Produkte i/d datenverarbeitung
SAR		Safety assessment report or safety analysis report
		Search And Rescue
		Son Altesse Royale
		Specific Absorption Rates
		Stichting Achmea Rechtsbijstand
		Su Alteza Real
		Suspicious Activity Report
		Synthetic Aperture Radar
SAS		Scandinavian Airlines System
		Serial Attached SCSI
		Situational Awareness System
		So-And-So
		Special Air Service
		Statistical Analysis Software
		Surfers Against Sewage
SAT		Scholastic Aptitude Test
		Service Action Team
		Standard Assessment Task
		System Analysis Toolkit
		Systematic approach to training
SAV		Single Assignment Variable
SAX		Simple API for XML
		Space Architect Exercise
SBA		Simulation Based Aquisition
		Swiss Bank Approach
SBB		Schweizerische Bundesbahn
		Sleutels, Barnard en Van der Beek
		Staatsbosbeheer
SBC		Server Based Computing
		Single Board Computer
SBD		Silent But Deadly
SBF		Sam Bankman-Fried
SBI		Surrounded By Incompetence
SBM		Senior Bier Manager
		Sharon Bertsch McGrayne
SBO		Samenwerkende Borstvoeding Organisaties
SBQ		Standard Batch Quantity
SBR		Slap Bureau Ruggetje
SBS		Scandinavian Broadcasting System
		Site by Site
		Small Business Server
		Sodding Big Spaceship
		Special Boat Service
		Surrounded by Stupidity
SBU		Strategic Business Unit
		studiebelastingsuren
SBV		Sectorale Berichten Voorziening
SCA		Secular Coalition for America
		Single-Connector Attachment (SCSI)
		Static Code Analysia
		Supreme Council of Antiquities
SCC		Sarah Connor Chronicles
		Ship's Control Centre
		Source Code Control
SCD		Strictly Come Dancing
SCE		Signal Conditioning Electronics
		Spatial Coding Emulation
SCF		Security Control Framework
		Sport Club Feyenoord
		Sunk Cost Fallacy
SCG		Sydney Cricket Ground
SCI		Sensitive Compartmentalized Information
		Sensitive Compartmented Information
		System configuration information
SCM		Simon Conway Morris
		Software Configuration Management
		Supply Chain Management
SCN		shipbuilding and conversion, Navy
		Stay Connected Neger
		Suprachiamatic nucleus
SCO		Santa Cruz Operation
		Sturing van het Creatief Ontwerp
SCP		Sanctioned Competition Program
		Secure Copy
		Sociaal Cultureel Planbureau
SCR		Selective Catalytic Reduction
		Silicon Controlled Rectifier
		Stotter Centrum Rijnland
		Sveriges Campingvärdars Riksförbund
SCS		School of Computer Science
		Secret Cloggie Society
SCT		Stockpile Confidence Test
SDB		Stichting Disposables Benelux
SDC		Student Dust Counter
SDE		Screen Door Effect
SDF		Signed Distance Field
		Six Degrees of Freedom
SDG		Spencer Davis Group
		Stichting Draadloos Groningen
		Sustainable Development Goals
SDH		Subtitles for the Deaf and Hard of hearing
SDI		Software distribution network information
		Strategic Defence Initiative
SDJ		Stinky Dinosaur Juice
SDK		Software Development Kit
SDL		Scene Description Language
		Schema Definition Language
		Simple Directmedia Layer
SDM		Self Destruct Mode
		Software Development Magazine
		Stichting Democratie en Media
		Sun Download Manager
SDN		Software distribution network
		Stichting Dranken Nederland
SDO		Solar Dynamics Observatory
SDP		Session Description Protocol
		Standard Dating Protocol
SDR		Software Defined Radio
		Special Drawing Right
		Special Drawing Rights
SDU		Staatsdrukkerij en -uitgeverij
SDV		Semicolon Divided Values
SEA		Syrian Electronic Army
SEC		Securities and Exchange Commission
		Start Evaluatie Curriculum
SED		Stichting Expertisecentrum Discriminatie
		Stream EDitor
SEH		Spoedeisende Eerste Hulp
SEI		Script Encoding Initiative
SEK		Sigaardoos Electro Kalimba
SEM		Scanning Electron Microscope
		Scientifically Engineered Maintenance
		Smart Evert Manager
		Society for Ethnomusicology
		Society for Experimental Mechanics
		Space Experimental Module
		Structural Equation Modeling
SEN		Special Educational Needs
SEO		Search Engine Optimalization
		Search Engine Optimizer
SEP		Samenwerkende Elektriciteitsproducenten
		Single-Engine Piston
		Solar Electric Propulsion
		Someone Else's Problem
		Standard Evaluation Protocol
		Stanford Encyclopedia of Philosophy
		Stockpile Evaluation Plan
		Systems Enhancement Package
SER		Safety Evaluation Report
		Sociaal Economische Raad
SES		Simple Email Service
		Sociaal Economische Status
		Special Enforcement Squad
		Swift Exit Seat
		Systeem voor elektronische sollicitatie
SET		Secure Electronic Transaction
		Secure Electronic Transactions
		Stone's Embedding Theorem
SEU		Single Event Upsets
SFA		Scotish Football Association
SFB		Sunken Feature Building
SFC		Shop Floor Control
		Sporthuis Fucking Centrum
SFD		Sound File Data
SFE		San Francisco Earthquake
SFF		Science Fiction and Fantasy
SFH		Stichting Fraudebestrijding Hypotheken
SFI		Severely Fuckable Individual
		Significant Finding Investigation
SFL		Sorry For Laughing
SFO		Serious Fraud Office
SFP		Small Form-factor Pluggable
SFS		Super Fun Saturday
SFT		So Fucking Tired
SFW		Safe For Work
SFX		Special Effects
SGC		Sport Gezondheids Centrum
SGE		Search Generative Experienc
SGG		Seksueel Grensoverschrijdend Gedrag
SGH		Stichting Gelijkwaardig Herstel
SGI		Silicon Graphics, Inc.
		Spark Gap Initiator
SGL		Sydney Gamers League
SGM		StadsGewestelijk Materieel
SGP		Staatkundig Gereformeerde Partij
SGR		Some Great Reward
		Sortie Generation Rate
		Stichting Garantiefonds Reisgelden
SGS		Still Going Strong
SHA		Secure Hash Algorithm
SHD		Snoei Harde Disco
SHG		Sugar Hill Gang
SHM		Structural Health Monitoring
		Swedish House Mafia
SHO		Samenwerkende Hulporganisaties
SHR		Spontaneously Hypertensive Rat
		Staff Human Resources
		State Highway Route
		Steroid Hormone Receptor
		Synology Hybrid RAID
SIB		Safety Information Bulletin
		Swelling Itching Brain
SIC		Standard Industrial Code
SID		Sound Interface Device
		Standard Instrument Departure
SIE		Software Innovatie Event
SIF		Safe Internet Foundation
		Setup installation files
SIG		Software Improvement Group
		Special Interest Group
		Sphere Interest Group
		Stroppy, Ignorant Git
		Susquehanna International Group
SIM		Sportinformatiemarkt
		Subscriber Identity Module
SIO		Stanford Internet Obsevatory
SIP		Session Initiation Protocol
		Software for Intellectual Property
		System Integrity Protection
SIR		Semantic Information Retrieval
SIS		Schengen Informatie Systeem
		Science In Society
		Secret Intelligence Service
		Student Informatie Systeem
SIT		Simple Internet Transition
SIU		Sterrenkundig Instituut Utrecht
		Subconscious Intuitive Understanding
SIV		Simmian Immunodeficiency Virus
		Structured Investment Vehicle
SJG		Stephen Jay Gould
SJW		Social Justice Warriors
SKA		Square Kilometer Array
		Square Kilometre Array
SKB		Svensk Kämbränslehantering AB
SKD		SonnenKrieg Division
SKF		Schermkring Friesland
SKI		Stiftung füKunstigen Intelligenz
SKT		Sociaal Kunstzinnige Therapie
SKU		Stichting Katholieke Universiteit
		Stock Keeping Unit
SLA		Service Level Agreement
		Single Letter Acronym
		Stereo Lithograph Apparatus
		Stereolithography
		Swim Lane Approach
SLB		Sad little bunch
		Spoilt Little Bitch
		Studie Loopbaan Begeleiding
SLC		Stereo Lithography Contour
SLF		Simple Logging Facade
SLJ		Samuel Leroy Jackson
SLM		Strategisch Leveranciersmanagement Microsoft
		Surinaamse LuchtvaartMaatschappij
SLO		Standard Lakota Orthography
		Stichting Landelijk Onderwijs
SLR		Shift Logical Right
		Single Lense Reflexcamera
SLS		Selective Laser Sintering
		Shit Life Syndrome
SLT		Second Law of Thermodynamics
SMA		Society for Medieval Archaeology
SMB		Server Message Block
		Surface Marker Buoy
SMC		Spijkenisse Medisch Centrum
SMD		Studenten Moeten Dood!
		Surface Mount Device
SME		Small Management Enterprise
		Subject-Matter Expert
SMF		Sexy Mother Fucker
SMG		Sarah Michelle Gellar
		Sub-Machine Gun
		Suck My Goat
SMI		Self Mounting Image
SML		Senate Majority Leader
		Stichting Machinale Landbouw
SMN		Samenwerkingsverband van Marokkanen in Nederland
SMP		Service-MeldPunt
		Societas Meteorologica Palatina,
		Stable Marriage Problem
		Statutory Maternity Pay
		Survival Multi Player
		Symmetric MultiProcessing
SMR		School MedezeggenschapsRaad
		Small Modular Reactor
SMS		Short Message Service
SMT		School of Media and Technology
SMV		Stolen Motor Vehicle
SNA		Stichting voor de Nederlandse Archeologie
SNB		Sub-cooled nucleate boiling
SNC		Spontaneous Nostril Combustion
SNE		Startvaardigheden Nederlands en Engels
SNF		Saturday Night Fever
		Spent Nuclear Fuel
SNG		Sint Nikolaas Genootschap
SNH		Secundaire Nutritionele Hyperparathyroïdie
SNI		Server Name Identification
SNL		Sandia National Laboratories
		Saturday Night Live
SNM		Special Nuclear Material
SNN		Spiritueel Netwerk Nederland
SNP		Scottish National Party
		Sensorisch Neurale Problemen
		Single Nucleotide Polymorphism
SNR		Super Nova Remnant
SNS		Samenwerkende Nederlandse Spaarbanken
SNV		Stichting Nederlandse Vrijwilligers
SOA		Seksueel Overdraagbare Aandoening
		Senior Organisatie Adviseur
		Service Oriented Architecture
		Service-Oriented Architecture
		Start Of Authority
SOB		Son of a Bitch
SOC		Scenes of Crime
		Service-Oriented Computing
		Span Of Control
SOF		Special Operational Forces
SOG		Studie Ontwijkend Gedrag
SOH		Start Of Heading
SOI		Schermers Onder Invloed
		Sillicon On Insulator
SOJ		Sphere Online Judge
SOK		StudieOvereenKomst
SOL		Shit Outta Luck
		Speed Of Light
SOP		Salwatoriański Ośrodek Powołań
		School of Pharmacy
		SchoolOntwikkelingsProcessen
		Service Orthodoxe de Presse
		Seynaeve Objectos Publicitários
		Síndrome de Ovarios Poliquísticos
		Small Outline Package
		socialistická organizace pracujících
		Société Odontologique de Paris
		Some Other Problem
		Sozio-oekonomische Panel
		Standing Operating Procedure
		Statement of Purpose
		Státní opera Praha
		Stichting Onafhankelijke Partners
		Strana Občianskeho Porozumenia
		Strategisch Ontwikkelings Plan
		Stream of Praise
		Subject-oriented programming
		Sum Of Products
		Surface OPerator (houdini)
		Systeem Ontwikkeling en Programmering
SOR		Successive Over Relaxation
SOS		Save Our Souls
		Sea Of SIn
		Service Oriented Systems
		Signalering Onjuist Spatiegebruik
		Sinkhole Of Support
SOW		Speaking Of Which
SPA		Society of Professional Accountants
		Staat van Politie Alarm
		Stichting Preferente Aandelen
SPC		Statistical Process Control
		Stop Producing Crap
		Stored Program Command
SPD		Sozialdemokratische Partei Deutschlands
		Spam Moet Dood
		Studio Provisioning Demo
SPE		Sound Pattern of English
SPF		Sender Policy Framework
		Stupid Populist Front
SPG		Special Patrol Group
SPH		Smoothed Particle Hydrodynamics
		Sociaal Pedagogische Hulpverlening
SPI		Service Provider Interface
SPM		Semi Permanent Mascara
		Software Portfolio Monitoring
SPP		Serial Port Profile
SPS		Small Penis Syndrome
		Station Police Sergeant
SPU		Sound Processing Unit
		Stream Processing Unit
		Studenten Protest Utrecht
		Synergistic Processing Unit
SPV		Sociaal Psychiatrische Verpleegkunde
SQC		Sponaneous Quality Cycle
		Statistical Quality Contro
		Statistical Quality Control
SQJ		Software Quality Journal
SQL		Structured Query Language
SQM		Strategic Quality Management
SQR		Structured Query Reporter
SQS		Simple Queue Service
SRA		Satanic Ritual Abuse
		Software Risk Assessment
SRB		Solid Rocket Booster
		Stichting Rokers Belangen
SRC		Société Royale du Canada
		Stichting Reclame Code
SRG		Safety Review Guidelines
SRH		strategic radiation-hardened
SRI		Stanford Research Institute
SRL		Stichting Revalidatie Limburg
		Survival Research Labs
SRM		Service Repair Manual
		Standard Reference Material
		Standard Reference Model
SRO		Station Reception Officer
SRP		Session Request Protocol
		Standard Review Plan
SRS		Savannah River Site
		Solar Radio Spectograph
SRT		Sachin Ramesh Tendulkar
		Special Response Team
SRV		Samen Rationeel Verkopen
SSA		Segment Search Arguments
		Slippery Slope Argument
		Stichting Studenten Activiteiten
		Stovepipe System AntiPattern
SSB		Single Side Band
		Space Shuttle Boosters
		Stadsschouwburg
SSC		Shader Sanity Check
		Shared Service Center
		Studenten Service Centrum
		Systems, structures and components
SSD		Solid State Drive
SSE		Sensitive Site Exploitation
		Server Sent Events
		Sum of Squared Errors
SSF		Single Status Friends
		Speech Spectral Frontend
SSH		Secure Shell
		Stichting StudentenHuisvesting
SSI		Server Side Include
		Server Sided Issue
		Statens Serum Institut
SSL		Secure Socket Layer
		Solid State Logic
SSM		Solid State Music
		surface-to-surface missile
SSN		Social Security Number
SSO		Single Sign On
		Sociaal Sterk Oss
SSP		Secondary Spontaneous Pneumothorax
		Signaal Special Products
		Stockpile Stewardship Plan
		Strategic Systems Programs
		Surface Science Package
SSR		Satellite System Receiver
		Secondary Surveillance Radar
		Sum of Squares due to Regression
SSS		Sea Salt Saloon
		Sigue Sigue Sputnik
		Simple Software Solutions
		Simple Storage Service
		Stepping Stone Strategy
		Sub Surface Scattering
SST		Sea Surface Temperature
		Shear Stress Transport
		Single Speed Transmission
		Solid State Technology
		SuperString Theory
SSY		Snoeiharde Sonic Youth
SSZ		Shouf Shouf Zombibi
STA		Science, Technology And Society
		Supplier Technical Assistance
STC		Syntactic Tail Calls
STD		Sexually-Transmitted Diseases
		State transition diagram
		Straight To Download
STE		Star Trek ENterprise
STF		Stage Toestemmingsformulier
STG		Scholary Technology Group
STI		Semantic Technology Institute
STK		Shoot to Kill
STL		Spread Those Legs
		Standard Template Library
		Stereo Tesselated Lithography
STP		Shielded Twisted Pair
		Standard Temperature and Pressure
STR		Short Tandem Repeats
		Special Theory of Relativity
STS		Sound Transform Systems
		Space Transportation System
		stockpile-to-target sequence
STT		Same Time Tomorrow
		Singapore Technologies Telemedia
		Skip on Third Tuesday
		Sugiyama Tugawa and Toda
		Surface Tension Transfer
STV		Star Trek Voyager
		Straight To Video
SUA		Software User Agreement
SUD		Single User Device
SUF		Sudden Unexpected Fatherhood
SUH		Sligo University Hospital
SUI		Shell Upstream International
SUK		Studenten Uithof Kommissie
SUM		Specifiek Universitair Magazine
		Stand Up Meeting
SUN		Socialistische Uitgeverij Nijmegen
SUP		Stand Up Paddling
SUS		Silly User Syndrome
		Single UNIX Specification
SUU		Southern Utah University
SUV		Sports Utility Vehicle
SVB		Silicon Valley Bank
		Sociale Verzekeringsbank
		Stichting Vesting Bourtange
SVD		Singular Value Decomposition
		Studium Verbum Domini
SVF		Simple Vector Format
SVG		Scalable Vector Graphic
		Smoke Vector Graphic
SVN		Silicon Valley North
		Social Venture Network
		SubVersioN
SVP		S'il Vous Plaît
SVT		Sveriges Television
SVZ		stand van zaken
SWA		Slit Wheel Assembly
SWF		Single White Female
		Steirischen Wirtschaftsförderung
		Sûd West Fryslân
		Sud-West Funk
SWL		Screaming With Laughter
SWM		Single White Male
SWO		Stichting Welzijn voor Ouderen
SWP		Small World Phenomenon
		Stagewerkplan
SWR		Scotch Whisky Regulations
		Südwestrundfunk
SWT		Shorter Work Time
		Standard Widget Toolkit
SXI		Solar X-ray Imager
SYL		See You Later
		Strapping Young Lad
SYS		See You Soon
		Sesli Yanýt Sistemleri
		Shoot Your Shot
		Southwest Youth Symphony
		Stretch-Yawn Syndrome
		Sun Yat-Sen
SYT		Sweet Young Thing
SZH		Stichting Zeldzame Huisdierrassen
SZT		Servers Zijn Traag
SZZ		schoonzuszus