| Acronym | Definition |
|---|
| SID➣Semel in Die (Latin: Once A Day) |
| SID➣Society for Information Display |
| SID➣Sports Information Director |
| SID➣Security Identifier |
| SID➣Special Improvement District |
| SID➣Society for International Development |
| SID➣Safer Internet Day (Insafe) |
| SID➣Shared Information & Data (model) |
| SID➣Society for Investigative Dermatology |
| SID➣Sudden Infant Death |
| SID➣Software in Development (various organizations) |
| SID➣Stitch in the Ditch (quilts) |
| SID➣Ship in Distress |
| SID➣System Identifier |
| SID➣Sensory Integration Disorder |
| SID➣Sensory Integration Dysfunction |
| SID➣System Insight Display (Hewlett Packard) |
| SID➣Sound Improvement Disc (acoustics) |
| SID➣Standard Instrument Departure |
| SID➣Shared Information and Data |
| SID➣Serial Input Data |
| SID➣Sender Id |
| SID➣Society for Information Displays |
| SID➣Safer Internet Day |
| SID➣Session Id |
| SID➣Sales Terminal Identifier |
| SID➣System Id |
| SID➣Service Id |
| SID➣Source Identification |
| SID➣Solid Ink Density |
| SID➣Subsystem Identification |
| SID➣Signaling Identifier |
| SID➣Sequence Id |
| SID➣Security Id |
| SID➣Sonic Interaction Design |
| SID➣SecurID |
| SID➣Session Identifier |
| SID➣Source ID |
| SID➣Senior Independent Director (various organizations) |
| SID➣Sound Interface Device |
| SID➣Specialarbejderforbundet I Danmark (Denmark) |
| SID➣Student Identification Number |
| SID➣Service Identifier |
| SID➣Scientific Investigation Division (law enforcement; various locations) |
| SID➣Station Identification |
| SID➣Sudden Ionospheric Disturbance |
| SID➣State Identification Number |
| SID➣Saab Information Display |
| SID➣Subscriber Identification |
| SID➣Source-to-Image Distance (radiology) |
| SID➣Station Identifier |
| SID➣Side Impact Dummy (auto crash testing) |
| SID➣Situation Display |
| SID➣Special Investigation Division |
| SID➣Strong Ion Difference (medical interpretation of complex acid base problems) |
| SID➣Surface-Induced Dissociation (mass spectrometry) |
| SID➣State Inpatient Database |
| SID➣Social Intelligence Design |
| SID➣Silence Insertion Descriptor |
| SID➣Specimen Image Database (biodiversity research) |
| SID➣Severely Intellectually Disabled |
| SID➣Safety in Design |
| SID➣Systems Integration Division |
| SID➣Shuttle Integration Device (US NASA) |
| SID➣Security in Depth |
| SID➣Supplier Information Database |
| SID➣Special Investigation Department (Thailand) |
| SID➣Sociedad Internacional para el Desarrollo (Spanish) |
| SID➣Symbolic Interactive Debugger |
| SID➣Singular Indestructible Droid (song) |
| SID➣Silicon Ice Development (video game developer) |
| SID➣Spatially Immersive Display |
| SID➣Seed Industry Development (various locations) |
| SID➣Sanitary Improvement District |
| SID➣Secondary Imagery Dissemination |
| SID➣Strategies for International Development (Arlington, VA) |
| SID➣Société Internationale pour le Développement (French) |
| SID➣Special Energy Improvement District (Ohio) |
| SID➣System Interface Document |
| SID➣Sal, Cape Verde - Amilcar Cabral International (Airport Code) |
| SID➣Systemic Inflammatory Disease |
| SID➣Système d'information Douanier (French: Customs Information System) |
| SID➣Swift Interface Device |
| SID➣Sadistic, Intelligent, Dangerous |
| SID➣Street Improvement District |
| SID➣Société Industrielle de Diffusion (French: Industrial Distribution Company) |
| SID➣Structure Identifier |
| SID➣Spectral Information Divergence |
| SID➣Slew Induced Distortion |
| SID➣Sidetic (linguistics) |
| SID➣Ship Installation Drawing |
| SID➣Structural Interior Design (US Army Corps of Engineers) |
| SID➣Switch Identifier |
| SID➣Substitution, Insertion, Deletion |
| SID➣Satellite Identifier |
| SID➣Serial Interface Device |
| SID➣Standard Interface Document |
| SID➣Scheduled Implementation Date |
| SID➣System Interface Description |
| SID➣Send Identifier |
| SID➣Services Innovants pour Personnes Dépendantes (French: Innovative Services for Dependent Persons) |
| SID➣Sodium Ionization Detector |
| SID➣Software Independent Data |
| SID➣Source Image Distances |
| SID➣Sequence Information Data |
| SID➣Standard Information Display |
| SID➣System Identifier for the Database Instance (Oracle) |
| SID➣Subsea Intervention Device |
| SID➣Standard Integrated Desktop |
| SID➣Satellite Infiltration Drone (Knight Rider TV show) |
| SID➣Supplementary Irish Draught (horse breed) |
| SID➣Security Investigation Division |
| SID➣Skin Irritant Decontaminant |
| SID➣Service Industries Division |
| SID➣System Interface Diagram |
| SID➣Sequence Interaction Diagram |
| SID➣Service Information Dataset |
| SID➣Silent Indicator Description |
| SID➣Strategic Intelligence Digests |
| SID➣Security Investigations Division (Armed Forces Retirement Home) |
| SID➣Shuffled Iterative Decoding |
| SID➣Seismic Intrusion Detector/Device |
| SID➣Solomon Island Dollar (national currency) |
| SID➣Strip Interior Diffraction |
| SID➣Satisfactory Implementation of Design |
| SID➣Stammdaten Identifikationsnummer (German) |
| SID➣System Information Directory |
| SID➣Strip of Initial Definition |
| SID➣Systems Inventory Database |