S&D Search And Destroy

S&E Sausage and Egg

S&M Sadism & masochism
S&M Sado-masochism
S&M Smoke and mirrors

S,ITWB Sorry, in the wrong box

S/A Sex/Age

S/M Sadism And Masochism

S/MIME Secure Multi-purpose Internet Mail Extensions

S/PDIF Sony/Philips Digital Interface

S4S Surfaced four Sides

SAC Sorry All Close

SA-CD Super Audio CD

SADT Structured Analysis and Design Technique

SAE Society of Automotive Engineers
SAE Stamped addressed envelope

SAF Single Asian Female

SAG Screen Actors Guild

SAHD Stay at home dad

SAHH Stay At Home Husband

SAHM Stay At Home Mother
SAHM Stay At Home Mum

SAIS Student Assessment of Instruction System

SAMG Simple Audio Manager

SAML Security Assertion Markup Language

SANS System administration networking and security

sans Without (French)

SAR Search and Rescue
SAR Smart Arse Remark
SAR Specific Absorption Rate

SARG Search ARGument

SARS Severe Acute Respiratory Syndrome

sas Smiling, Always Smiling
sas Special Air Service

SASA Straight-acting, straight-appearing

SASB Sobbing And Sniffing Bitterly

SASE Self Addressed Stamped Envelope

sass Short Attention Span Syndrome

SAT Scholastic Aptitude Test
SAT Scholastic Assessment Test
SAT SIM Application Toolkit

SATC Sex And The City

SAU Same As Usual

SAYOR Speak At Your Own Risk

sb Smile Back
sb Somebody

SBB Stupid Beyond Belief

SBCN Sitting Behind the Computer, Naked

SBCS Single-byte character set

SBD Silent But Deadly

SBF Single Black Female

SBH Straight Black Hair

SBID Shitty But It'll Do
SBID Sometime Before I Die

SBM Single Black Male

SBT Strange But True

SBTA Sorry, Being Thick Again

SC Stay Cool

SCADA Security Control and Data Acquisition systems

SCCS Source Code Control System

SCG Sydney Cricket Ground

SCLM So Called Liberal Media

SCM Supply chain management

SCNR Sorry, Could Not Resist

SCSI Small Computer System Interface

SCSI System Can't See It

SCUBA Self contained underwater breathing apparatus

SCUMM Script Creation Utility for Maniac Mansion

SD Sad
SD Secure Digital
SD Structured Design
SD Super Density

SDF So Dang Funny

SDGI She Doesn't Get It

SDIHTT SomeDay I'll Have The Time

SDK Software Development Kit

SDRAM Synchronous dynamic random access

SDSI Simple Distributed Security Infrastructure

SDSL Synchronous Digital Subscriber Line

SDTV Standard Definition Television

SEC Securities and Exchange Commission

SECAM Séquentiel Couleur avec Mémoire
SECAM Systeme Electronique Couleur Avec Memoire

SEO Search engine optimisation

SEP September
SEP Signalling End Point
SEP Somebody Else's Problem

SERPS Search Engine Results Pages

SETI Search for Extraterrestrial Intelligence

SFA Sales Force Automation

SFAIAA So far as I am aware

SFAICR So Far As I Can Recall

SFAIK So Far As I Know

SFETE Smiling From Ear To Ear

SFF Small Form Factor

SFFO Small Form Factor Optical storage

SFIA Skills Framework for the Information Age

SFLA Stupid Four Letter Acronym

SFMJI Sorry For My Jumping In

SFP Small form-factor pluggable

SFSF Student Facilities and Services Fee

SFSG So Far So Good

SFT Sorry For That

SFU Services For Unix

SFW So Friggin' What?

SFX Special Effects

SG&A Selling, General, and Administrative

SGML Standardised Generalised Markup Language

SGWM Single Gay White Male

SHA Secure Hash Algorithm

SHCOON Shoot hot coffee out of nose

SHLH Sitting Here Laughing Hysterically

SHMILY See How Much I Love You
SHMILY Showing How Much I Love You

SHTML Static Hypertext Mark-up Language

SHTR See How They Run

SICNR Sorry , I could not resist

SICS Sitting in chair snickering

SIDH Sorry I didn't help

SIDU Sorry I Don't Understand

SIFM Yes i have ham

SIG2R Sorry, I Got To Run

SIIK Stuffed If I Know

SIM Security Incident Management
SIM Subscriber identity module

SIMM System In-Line Memory Modules
SIMMs Single Inline Memory Modules

SINK Single Income No Kids

SIP Session Initiation Protocol

SIPP Simple Internet Protocol Plus

SIS,SIG Speech is silver, silence is golden

SISMS Standard Integrated Support Management System

SISO Serial Input/Serial Output

SIT Stay in touch

SITP Strategic Information Technology Plan

SITREP Situation Report

SJF Single Jewish Female

SJM Single Jewish Male

SKTDH Stop Kicking That Dead Horse

SKU Stock Keeping Unit
SKU’s Stock Keeping Units

SLA Service level agreement

SLBM Submarine-Launched Ballistic Missile

SLD Second level domain

SLFN So Long Far Now

SLIP Serial Line Interface Protocol
SLIP Serial Line Internet Protocol
SLIP Serial line IP

SLIRK Smart Little Rich Kid

SLM See Last Mail
SLM Service Level Management

SLP Super Long Play

SLR Single lens reflex

SMAIM Send Me An Instant Message

SMAW Shielded Metal Arc Welding

SMB Server Message Block
SMB Small-to medium Businesses

SMDP System Monitoring Display Protocol

SME Small and Medium Enterprises

SMH Shaking My Head
SMH Signal Message Handling

SMHID Scratching My Head In Disbelief

SMMWO Shut My Mouth Wide Open

SMO Serious Mode On

SMOFF Serious Mode Off

SMOP Small Matter Of Programming

SMP Symetric Multiprocessing
SMP Symmetric Multi Processing

SMPP Short message peer to peer

SMPTE Society of Motion Picture and Television Engineers

SMS Small Message Service
SMS Short Man’s Syndrome
SMS Short message service

SMSC Short Message Service Center

SMSE Short Message Service Engine

SMSL Standard Multimedia Scripting Language

SMTP Simple Mail Transfer Protocol

snac Snack

SNAG Sensitive New Age Guy

SNAT Source network address translation

SNE Super Nintendo emulator

SNERTS Snot-nosed egotistical rude teenager

SNL Saturday Night Live

SNMP Simple Network Managment Protocol

SNR Signal to Noise Ratio

SO Significant Other

SOA Same old architecture
SOA Service Oriented Architecture
SOA Service-oriented architecture

SOAG Son Of A Gun

SOAP Simple Object Access Protocol

SOCOM Special Operations COMmand

SOD Season of Death
SOD Stupidity of the Day

SOG Shots on goal
SOG Son Of a Gun

SOHB Sense Of Humour Bypass

SOHC Single OverHead Cam

SOHF Sensing Humor Failure

SOHOs Small Office/Home Office Businesses

SOHT Socket over HTTP Tunneling

SOMF Sat On My Face

SOMY Sick Of Me Yet

SOP's Safe Operating Procedures

SOSO Same Old, Same-Old

SOTA State Of The Art

SOTG Spirit Of The Game

SOTP Seat Of The Pants

SOTW Shot of the week
SOTW Site of the week
SOTW Soldiers Of The World
SOTW Special of the week
SOTW Spirit of the wild

SOW Speaking of which
SOW Statement of work

soyf Stay on your feet

SPADATS Space Detection and Tracking System

SPAM Stupid Person’s Advertisement

SPDIF Sony/Philips Digital Interface

SPF Sender Policy Framework
SPF Sun Protection Factor

SPIC Spanish Indian and Colored

spIM Spam sent by Instant Messaging

SPML Service provisioning markup language

SPOC Single Point Of Contact

SPOT Smart Personal Objects Technology

SPQR The Senate and the people of Rome

SPST Same Place Same Time

sql Single
sql Structured Query Language

SQO Some Quantity Of

SRAM Static RAM

SRM Supplier Relationship Management

SRO Standing room only

SRS Supplementary restraint system

SRY Sorry

SS7 Signalling System 7

SSADM Structured systems analysis and design

SSBN Ship Submersible Ballistic Nuclear

SSEWBA Someday Soon, Everything Will Be Acronyms

SSFD Solid State Disk

SSI Subject says it

SSID Service set identifier

SSL Secure socket layer

SSM Same-sex marriage

SSPI Security Support Provider Interface

STBID Some Time Before I Die

STBY Sucks To Be You

STD Sick To Death
STD Standard

ST-DS9 Star Trek Deep Space Nine

STFAGOS Stuff That For A Game Of Soldiers

STFW Search the internet

STM Spank The Monkey

STMP Simple Transportation Management Protocol

STMUC Stop Texting Me You Creep

STO Special Tactics Officer
STO Sticking Out Tongue

STT Same Time Tomorrow

STTNG Star Trek The Next Generation

ST-TNG Star Trek The Next Generation

STW Search The Web

SU Shut up
SU Super user

SUFID Screwing Up Face In Disgust

SUI Simple User Interface

SUITM See You In The Morning

SUL See You Later

SUNOILTY Shut Up No One Is Listening To You

Sup What’s up?

SUS See you soon
SUS Software update services

SUV Sports Utility Vehicle

SVCD Super Video CD

SVG Scalable Vector Graphics
SVG Scaleable Vector Graphic

SVga Super VGA

svu Special victims unit

SWAK Sent with a kiss

SWAT Special Weapons And Tactics

SWATK Sealed with a tender kiss
SWATK Sent with a tender kiss

SWB Short wheelbase

SWCOC Special Wishes, Comments, Or Corrections

SWDYRTW Since When Do You Rule The Web

SWDYT So What Do You Think?

SWE Standard Written English

SWITW Sexiest Woman In the World

SWL Screaming with Laughter

SWLABR She Walks Like a Bearded Rainbow

SWM Single White Male

SWMBO She Who Must Be Obeyed

SWPM Single White Professional Male

swrd Still waters run deep

SWW Single White Woman

SWYP So What's Your Problem

SY2SB Send you to sin bin

SYBDW2BY See Ya But Don't Want 2 Be Ya

SYH Shut Your Head

SYITM See You In The Morning

SYL See you later

SYLA See You Later Alligator

SyncML Synchronisation Markup Language

SYS See You Soon

SYSOP System Operator

SYT See You Tonight
SYT Sight
SYT Sweet Young Thing

SYUTH Smack You Upside The Head

SYWWBY See Ya Wouldn't Wanna Be Ya