| S&F | Slip and Fall 
| Others |
| S&F | Store and Forward
| Others |
| S&F | Store-And-Forward
| Others |
| S/F | Safety Factor
| Others |
| S/F | Single Flow
| Others |
| SF | inSANe Francisco
| Others |
| SF | IRCAM Sound File
| Others |
| SF | OS/2 WPS attribute storage
| Others |
| SF | s for
| Others |
| SF | s for Financial
| Others |
| SF | Sacrifice Flies
| Others |
| SF | Sacrifice Fly
| Others |
| SF | Sad Francisco
| Others |
| SF | Safety, Reliability and Quality Assurance (R&QA), and Protective Services
| Others |
| SF | Samuel Freeman
| Others |
| SF | San Fecalcisco
| Others |
| SF | San Fernando Electronics
| Others |
| SF | San Flushcisco
| Others |
| SF | San Francisco 49Ers
| Others |
| SF | San Francisco Field Office
| Others |
| SF | San Francisco Giants
| Others |
| SF | San Franseptic
| Others |
| SF | San Fransicko
| Others |
| SF | San Franstinkhole
| Others |
| SF | San Fransucko
| Others |
| SF | San Franturdcisco
| Others |
| SF | San-itarylandfill Francisco
| Others |
| SF | Sandals And Feet
| Others |
| SF | Sandbox Francisco
| Others |
| SF | Sanitizesan Francisco
| Others |
| SF | Sanity Falls
| Others |
| SF | Scaling Factor
| Others |
| SF | Scarcely Found
| Others |
| SF | Scatter Factor
| Others |
| SF | School Food
| Others |
| SF | Schrodinger Functional
| Others |
| SF | Schweizer Franken (Swiss Franc)
| Others |
| SF | Scott Foresman Publishers
| Others |
| SF | Scranton Flats
| Others |
| SF | Scrap Files
| Others |
| SF | Scuderia Ferrari
| Others |
| SF | Seahawks Forever
| Others |
| SF | Second Factory
| Others |
| SF | Security Force
| Others |
| SF | Security Forces
| Others |
| SF | Security Forces (Air Force or Navy)
| Others |
| SF | Segmented Frame
| Others |
| SF | Selbst Fahrend
| Others |
| SF | Selection Filter
| Others |
| SF | Self Filling
| Others |
| SF | Self-Flocculating
| Others |
| SF | Semi final
| Others |
| SF | Semi Floating
| Others |
| SF | Semper Fi
| Others |
| SF | Senate File
| Others |
| SF | Sentence Fragment
| Others |
| SF | Series Flotation
| Others |
| SF | Serious Fall
| Others |
| SF | Service Field
| Others |
| SF | Sets For
| Others |
| SF | Sewer Francisco
| Others |
| SF | Sexy Female
| Others |
| SF | Shallow Faulting
| Others |
| SF | Shame Francisco
| Others |
| SF | Shared Frameworks
| Others |
| SF | Shield Fusion
| Others |
| SF | Shooting Forward
| Others |
| SF | Shop Floor
| Others |
| SF | Short Fingers
| Others |
| SF | Short Form
| Others |
| SF | Short Frame
| Others |
| SF | Shun Fat
| Others |
| SF | Side Focus
| Others |
| SF | Sidewalk Fecal
| Others |
| SF | Sifat
| Others |
| SF | Sign Flag
| Others |
| SF | Signaling Frequency
| Others |
| SF | Signature File
| Others |
| SF | Significant Figures
| Others |
| SF | Silk Fence
| Others |
| SF | Silly Female
| Others |
| SF | Silly Fun
| Others |
| SF | Silver Fallow
| Others |
| SF | Simple Feature
| Others |
| SF | Simple Flux
| Others |
| SF | Simple Function
| Others |
| SF | Single Family
| Others |
| SF | Single Field
| Others |
| SF | Single Frequency
| Others |
| SF | Singular Field
| Others |
| SF | Sioux Falls
| Others |
| SF | Sky Factory
| Others |
| SF | Sky Flowers
| Others |
| SF | Sliding Filter
| Others |
| SF | Slimmer Frame
| Others |
| SF | Slow Fox
| Others |
| SF | Small Fall
| Others |
| SF | Small Farmer
| Others |
| SF | Small Firm
| Others |
| SF | Small Format
| Others |
| SF | Small Forward
| Others |
| SF | Smelly Francisco
| Others |
| SF | Snazzy File
| Others |
| SF | Sneads Ferry, North Carolina
| Others |
| SF | So Fine
| Others |
| SF | Social Functioning
| Others |
| SF | Soft Feel
| Others |
| SF | Solid Frame
| Others |
| SF | Soros Francisco
| Others |
| SF | Sort Flag
| Others |
| SF | Sostantivo Femminile
| Others |
| SF | Sound Factory
| Others |
| SF | Sour Flour
| Others |
| SF | Source Forge
| Others |
| SF | South Fargo
| Others |
| SF | South Fork
| Others |
| SF | Soviet Farm
| Others |
| SF | Soviet Finland
| Others |
| SF | Soviet Francisco
| Others |
| SF | Spam Factory
| Others |
| SF | Spanings Foto
| Others |
| SF | Special Force
| Others |
| SF | Special Forces
| Others |
| SF | Special Freighter
| Others |
| SF | Speculative Fiction
| Others |
| SF | Speed Figure
| Others |
| SF | Spew Factor
| Others |
| SF | Spinal Fluid
| Others |
| SF | Splicing Factor
| Others |
| SF | Sport Fairing
| Others |
| SF | Spreading factor
| Others |
| SF | Square Foot
| Others |
| SF | Square Footage
| Others |
| SF | Stackelberg Follower
| Others |
| SF | stand for
| Others |
| SF | Standard Font
| Others |
| SF | Standard Form
| Others |
| SF | Standard Forms
| Others |
| SF | Star Field
| Others |
| SF | Starboard Forward
| Others |
| SF | Starter Foil
| Others |
| SF | State Farm
| Others |
| SF | State Forest
| Others |
| SF | Static Firing
| Others |
| SF | Static Force
| Others |
| SF | Static Friction
| Others |
| SF | Step Footing
| Others |
| SF | Step Frequency
| Others |
| SF | Stimulant Free
| Others |
| SF | Sting Free
| Others |
| SF | Straight Facts
| Others |
| SF | Straight Flush
| Others |
| SF | Straight Forward
| Others |
| SF | Strategic Foresight
| Others |
| SF | Stratified Fudget
| Others |
| SF | Strawberry Fields
| Others |
| SF | Street Fighter
| Others |
| SF | Strike Force
| Others |
| SF | Strip Footing
| Others |
| SF | Strong Field
| Others |
| SF | Structural Foam
| Others |
| SF | Structural Funds
| Others |
| SF | Structure Factors
| Others |
| SF | Structured Field
| Others |
| SF | Structured Finance
| Others |
| SF | Student Financials
| Others |
| sf | stuff
| Others |
| SF | Stupid F***
| Others |
| SF | Sub Fine
| Others |
| SF | Subcontractor Furnished
| Others |
| SF | Subject Fit
| Others |
| SF | Sucrose Formulated
| Others |
| SF | Sugar Free
| Others |
| SF | Summed Frequency
| Others |
| SF | Summer Freeboard
| Others |
| SF | Sunday Funday
| Others |
| SF | Sunshine Foundation
| Others |
| SF | Suomi Finland
| Others |
| SF | Super Fancy
| Others |
| SF | Super Fast
| Others |
| SF | Super Field
| Others |
| SF | Super Finished
| Others |
| SF | Super Fluorescence
| Others |
| SF | Super Free
| Others |
| SF | Super Fun
| Others |
| SF | Superficial Femoral
| Others |
| SF | SuperFrame
| Others |
| SF | Superior Feel
| Others |
| SF | Supervised Functional
| Others |
| SF | Supply Fan
| Others |
| SF | Support Facility
| Others |
| SF | Suppress Form
| Others |
| SF | Supreme Fascist
| Others |
| SF | Supremely Frustrating
| Others |
| SF | Surcharge Free
| Others |
| SF | Sureno Familia
| Others |
| SF | Surface Features
| Others |
| SF | Surface Friction
| Others |
| SF | Sustained Fire
| Others |
| SF | Swine Flu
| Others |
| SF | Sword and Fist
| Others |
| SF | Symbol Fetcher
| Others |
| SF | Symmetry Factor
| Others |
| SF | System Field
| Others |
| SF | The Sophomore Freshman
| Others |