| Southern Polar Distance | Academic & Science |
| Structural Part of Design | Academic & Science |
| Supplemental Precipitation Data Product | Academic & Science |
| Shizoid Personality Disorder | Academic & Science |
| Spectral Power Distribution | Academic & Science |
| Society of Publication Designers | Academic & Science |
| State Price Density | Accounts and Finance |
| Saidpur | Airport Code |
| Salmon Poisoning Disease | Animal Kingdom |
| Systems Products Division | Business |
| Shimano Pedal Dynamics | Business |
| System Products Division | Business |
| Schedule Price And Dispatch | Business |
| speedy | Business |
| Smart Plug Device | Business |
| Sportsdirect | Business |
| Suspended Particle Device | Chemistry |
| Shanghai Pudong Development | Community |
| Sincere Punctual Dedication | Community |
| Small Press Distribution | Community |
| Surge Protection Device | Computer Hardware |
| Secreted Protein Database | Computing |
| Super Paper Dimentio | Computing |
| Single Programming Document | Computing |
| Security Policy Distribution | Computing |
| Simplified Postscript Description | Computing |
| Service Provider Descriptor | Computing |
| Simplified Printer Description | Computing |
| Speech Decoder | Computing |
| Symbol Previously Declared | Computing |
| Software Product Descriptions | Computing |
| System Product Division | Computing |
| Spreadsheet File | Computing |
| Surge Protective Device | Computing |
| Simulated Pulse Driving | Computing |
| Security Policy Database | Computing |
| Share Point Designer | Computing |
| SPINDLE | Cryptocurrency |
| Stipend | Cryptocurrency |
| Standard Procedural Database | Database Management |
| Silicon Photo Diode | Electronics |
| Speedo Scalable Font | File Type |
| Speedometer Dimming | General |
| Seat Post Diameter | General |
| Short Period Disqualification | General |
| Sports Power Drive | General |
| Spare Parts Distributor | General |
| Space Patrol Delta | General |
| Shimano Pedalling Dynamics | General |
| Support Pathetic Dildo | General |
| State Personnel Department | General |
| System Program Director | General |
| Serial Present Detect | General |
| Standard Position Description | General |
| Summary Plan Document | General |
| South Pacific Division | General |
| System Program Directorate | General |
| Summary Plan Descriptions | General |
| Survey of Program Dynamics | General |
| Simp Patrol Delta | General |
| Statewide Procurement Division | General |
| Stop Paying for Defense | General |
| Spinning Piledriver | General |
| Solar Patrol Delta | General |
| Swiss Precision Diagnostics | General |
| Serial Presence Device | General |
| Sozialdemokratische Partei Deutschlands (Social Democratic Party of Germany) | Governmental |
| School Police Division | Governmental |
| Seattle Police Department | Governmental |
| Space Police Delta | Governmental |
| Seattle Police Dept | Governmental |
| Schenectady Police Department | Governmental |
| Special Police Dekaranger | Governmental |
| SUPEDI | Indian Railway Station |
| German Social Democratic Party | International |
| Sozialdemokratische Partei Deutschlands | International |
| Symmetric Positive Definite Matrices | Maths |
| Symmetric Positive Definite | Maths |
| Symmetric Positive Definite Matrix | Maths |
| Special Paediatric Dentist | Medical |
| Symphis Pubic Dysfunction | Medical |
| Serious Psychological Distress | Medical |
| Society for Pediatric Dermatology | Medical |
| Symphysis Pubic Dysfunction | Medical |
| Symphysis Pubis Dysfunction | Medical |
| Split Personality Disorder | Medical |
| Sensory processing disorder | Medical |
| Sterile Processing Department | Medical |
| So Positively Demonic | Messaging |
| System Program Description | Military and Defence |
| Summary Plan Description | Military and Defence |
| Sozialdemokratische Partei Deutschland | Military and Defence |
| Spatial Discrimination | Military and Defence |
| Solar Physics Division | Physics Related |
| Saidpur, Bangladesh | Regional |
| Space Physics Division | Space Science |
| Speed | Space Science |
| Standard Practice Directive | Space Science |
| Shimano Pedaling Dynamics | Sports |
| Shimano Pedaling Dynamic | Sports |
| Strange Pedal Detachment | Sports |
| Serial Presence Detect | Telecommunication |
| Saidpur Airport | Transport & Travel |
