| SS | Susceptibility | |
| SS | Sunshine | |
| SS | Social Security | |
|
| SS | Sunset | |
| SS | Stainless Steel | |
| SS | Secret Service | |
| SS | South Sudan | |
| SS | Sterling Silver | |
| SS | Same Size | |
| SS | Sample Size | |
| SS | Social Science | |
| SS | Social Studies | |
| SS | Secondary School | |
|
| SS | Solid State | |
| SS | Social Services | |
| SS | Super Sport | |
| SS | Sunday School | |
| SS | Saints | |
| SS | Solar System | |
| SS | Screen Shot | |
| SS | Steady State (control systems engineering) | |
| SS | Safe and Secure | |
| SS | Space Station | |
| SS | Super Star | |
| SS | Search String | |
| SS | Screen Saver | |
| SS | Suicide Squad (Quake 3 clan) | |
| SS | San Sebastián | |
| SS | Self-Service | |
| SS | Space Systems | |
| SS | Spread Spectrum | |
| SS | State School (Australia) | |
| SS | Supersonic | |
| SS | Security Service (MI5) | |
| SS | Surround Sound | |
| SS | Shortstop (baseball) | |
| SS | Single Speed (bicycles) | |
| SS | Solid Surface | |
| SS | Space Shuttle | |
| SS | Sega Saturn (game machine) | |
| SS | So Sorry | |
| SS | Steam Ship (nautical vessel designation; also see MS for motor ship) | |
| SS | Special Service | |
| SS | Single Shot | |
| SS | Software Support | |
| SS | Sig Sauer (German pistol) | |
| SS | Sesame Street | |
| SS | So Sweet | |
| SS | Special Stage | |
| SS | Seattle Seahawks (football team) | |
| SS | Signature Series (various companies) | |
| SS | Structural Steel | |
| SS | Silver Star | |
| SS | Secret Santa | |
| SS | Sassari (Sardinia, Italy) | |
| SS | Supersede | |
| SS | State Senator | |
| SS | Submarine (conventional) | |
| SS | Six Sigma | |
| SS | Single Source | |
| SS | Storage Server (for HPSS) | |
| SS | Stack Segment | |
| SS | Single Strand (DNA) | |
| SS | Sum of Squares | |
| SS | Start and Stop | |
| SS | Single Sided | |
| SS | Super Sonic | |
| SS | Subspace (gaming) | |
| SS | Strip Search | |
| SS | Skyward Sword (game) | |
| SS | Suburban Service (Canadian post) | |
| SS | Solid Silver | |
| SS | Surface to Surface | |
| SS | Sharpshooter | |
| SS | Super Stock (racing category) | |
| SS | Silver Surfer | |
| SS | Senior School | |
| SS | Sea Salt | |
| SS | Severus Snape (Harry Potter character) | |
| SS | Shift Solenoid (automotive part) | |
| SS | Sub-Sonic | |
| SS | Spreadsheet | |
| SS | Service System (Bellcore) | |
| SS | Sommersemester (German: summer semester) | |
| SS | Sewage Sludge | |
| SS | Starship (science fiction) | |
| SS | Super Small | |
| SS | Sickle Cell Disease (genetics) | |
| SS | System Support | |
| SS | Secret Society | |
| SS | Slow Start | |
| SS | System Status | |
| SS | Safety Systems | |
| SS | Sentence Structure | |
| SS | Satin Silver (product color feature) | |
| SS | Short Stop (baseball/softball position) | |
| SS | Sjogren's Syndrome | |
| SS | Short Stature | |
| SS | Suspended Solids | |
| SS | Shell Script | |
| SS | Side, Side (geometry) | |
| SS | Safe Sex | |
| SS | Steven Spielberg (director) | |
| SS | SummerSlam (WWF PPV event) | |
| SS | Sharp Shooter | |
| SS | Semis (Latin: One Half) | |
| SS | Summerslam (WWF Wrestling event held in August) | |
| SS | Samurai Sword | |
| SS | Serious Sam (game) | |
| SS | Shared Services (IBM) | |
| SS | Swedish Standards | |
| SS | Southend-On-Sea (British postcode) | |
| SS | Southend On Sea (postcode, United Kingdom) | |
| SS | Ship Service | |
| SS | Ski School | |
| SS | Signal Service (Great Britain, World War One branch of the Royal Engineers) | |
| SS | Seventh Son (book) | |
| SS | Signaling System (telecommunications) | |
| SS | Survivor Series (WWF PPV event) | |
| SS | Sandstorm (METAR weather) | |
| SS | Site Safety | |
| SS | Shiv Sena (Indian political party) | |
| SS | Svensk Standard (Swedish Standard) | |
| SS | Special Studies | |
| SS | Support Software | |
| SS | SingStar (Sony Computer Entertainment) | |
| SS | Strong Safety (football) | |
| SS | Starting Strength (weightlifting) | |
| SS | Suicide Silence (band) | |
| SS | Shetland Sheepdog | |
| SS | Selective Service | |
| SS | Stone Soup (comic) | |
| SS | Security Supervisor (various companies) | |
| SS | Shift Supervisor | |
| SS | Strategic Sourcing | |
| SS | Sharepoint Server (Microsoft) | |
| SS | Supraspinatus (muscle) | |
| SS | Shoulder Stretch (stretching exercises) | |
| SS | Score Sheet | |
| SS | Supervisory Skills | |
| SS | Sammy Sosa (baseball) | |
| SS | Service Sink (construction plans; plumbing) | |
| SS | Sure, Sure | |
| SS | Spongebob Squarepants (cartoon) | |
| SS | Suction Side (of turbine/compressor blade) | |
| SS | Sliding Scale | |
| SS | Separate School (Toronto Catholic District School Board, Canada) | |
| SS | Stromile Swift (NBA Player) | |
| SS | Systemic Sclerosis | |
| SS | Sports Saloon (car) | |
| SS | Stepside (type of truck bed) | |
| SS | Shortland Street (New Zealand TV soap opera) | |
| SS | Sister Sledge (band) | |
| SS | Simulator System | |
| SS | Slim Shady (Eminem albumn) | |
| SS | Signal Simulator | |
| SS | Solid Snake (gaming, Metal Gear Solid character) | |
| SS | Slash's Snakepit (band) | |
| SS | Spousal Support | |
| SS | Storm Shield (Diablo 2 game) | |
| SS | Source Selection | |
| SS | Sezary Syndrome | |
| SS | Slip Stitch (crochet) | |
| SS | Sworn Statement (Notary Public-Vital Statistics on certified copies of documents) | |
| SS | Surveillance Station | |
| SS | System Shock (computer game) | |
| SS | Single Signal | |
| SS | Super Shot | |
| SS | Supplementary Services | |
| SS | Simmer Stat | |
| SS | Sylvia Saint (adult film star) | |
| SS | Steroid-Sensitive | |
| SS | Single Strength | |
| SS | Stunt Squad | |
| SS | Super Shadow (Sega Superstars character) | |
| SS | Supply Support | |
| SS | Harry Potter and the Sorcerer's Stone (book by J. K. Rowling) | |
| SS | Ship's Service | |
| SS | Sa Sainteté (French: His/Her Holiness) | |
| SS | Sports Sedan (automobile) | |
| SS | Success Sharing | |
| SS | Special Summon (Yu-Gi-Oh!) | |
| SS | Settleable Solids | |
| SS | Southshore (World of Warcraft gaming) | |
| SS | Step-Son | |
| SS | Sell Short (finance) | |
| SS | Sims Superstar (game) | |
| SS | Suitable Substitute (US DoD) | |
| SS | Software Specification | |
| SS | Switching System | |
| SS | Semisolid (pharmaceutics) | |
| SS | Shining Soul (game) | |
| SS | Steve Spurrier (football coach) | |
| SS | Street Sharks (cartoon) | |
| SS | Stationary Stochastic (neural information processing) | |
| SS | Soprano Saxophone | |
| SS | Station Service (802.11 WLAN) | |
| SS | Support Strategy | |
| SS | Server Statistics (gaming) | |
| ss | Scilicet (Latin: to Wit, Namely) | |