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Your abbreviation search returned 89 meanings
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| Category Filters > | All definitions (89) |
Information Technology (17) |
Military & Government (30) |
Science & Medicine (26) |
Organizations, Schools, etc. (19) |
Business & Finance (17) |
Slang, Chat & Pop culture (4) |
| sort results: alphabetical | rank ? | |||
| Rank | Abbr. | Meaning | |
|---|---|---|---|
| ****** | SIR | Society of Interventional Radiology | |
| ***** | SIR | Staten Island Railway (NY, formerly SIRT, Staten Island Rapid Transit) | |
| ***** | SIR | Self-Insured Retention | |
| ***** | SIR | Summary Information Return | |
| ***** | SIR | Spaceborne Imaging Radar | |
| ***** | SIR | Scholar in Residence | |
| ***** | SIR | Security Intelligence Report (Microsoft threat analysis) | |
| **** | SIR | Standardized Incidence Ratio | |
| **** | SIR | Serial Infrared | |
| **** | SIR | Signal-to-Interference Ratio | |
| **** | SIR | Surface Insulation Resistance | |
| **** | SIR | Shuttle Imaging Radar | |
| **** | SIR | Savings-to-Investment Ratio | |
| **** | SIR | Statistical Inventory Reconciliation | |
| **** | SIR | Statement of Intent to Register (College) | |
| **** | SIR | Screening Information Request (US FAA; same as RFP) | |
| **** | SIR | Supplemental Inflatable Restraint | |
| **** | SIR | Silent Information Regulator | |
| **** | SIR | Serious Incident Report | |
| **** | SIR | Statutory Invention Registration | |
| **** | SIR | Society of Insurance Research | |
| **** | SIR | Singapore Infantry Regiment | |
| **** | SIR | Seattle International Raceway | |
| **** | SIR | Special Investment Region (Dholera, Gujarat, India) | |
| *** | SIR | Susceptible-Infected-Removed | |
| *** | SIR | Société Ivoirienne de Raffinage (Abidjan, Ivory Coast) | |
| *** | SIR | Security Incident Report | |
| *** | SIR | Southeastern Institute of Research (ad survey firm) | |
| *** | SIR | Standard Indonesian Rubber | |
| *** | SIR | Sons In Retirement (Northern California retired men's luncheon club) | |
| *** | SIR | Scientific Information Retrieval | |
| *** | SIR | Selected Ion Recording (mass spectrometry) | |
| *** | SIR | Singapore Immigration and Registration | |
| *** | SIR | Statistical Information Retrieval | |
| *** | SIR | Safeguards Implementation Report | |
| *** | SIR | Stepped Impedance Resonator | |
| *** | SIR | Speech Intelligibility Rating | |
| *** | SIR | Safety Investigation Report | |
| *** | SIR | Sequential Importance Resampling | |
| *** | SIR | Sigma Iota Rho (international studies honorary society) | |
| *** | SIR | specific information requirement (US DoD) | |
| *** | SIR | System Investigation Request | |
| *** | SIR | Session Initiation Request | |
| *** | SIR | Sample Inspection Report (engineering prototype) | |
| *** | SIR | Selective Integrated Rail System (law enforcement product) | |
| *** | SIR | Snow and Ice on Runway | |
| *** | SIR | Supervised Intensive Restitution (Alabama prison program) | |
| ** | SIR | Sorry If Repost | |
| ** | SIR | Simulated Intelligence Robotics | |
| ** | SIR | System Integration Review | |
| ** | SIR | Spatial Impulse Response | |
| ** | SIR | System Incident Report | |
| ** | SIR | Submarine Intermediate Reactor | |
| ** | SIR | Service Information Request | |
| ** | SIR | Switched Integrated Rectifier (three phase transformer-rectifier power supply) | |
| ** | SIR | Simple Indexing and Retrieval | |
| ** | SIR | Standard Information Retrieval unit | |
| ** | SIR | Systems Integrated Research (UK educational software firm) | |
| ** | SIR | Standard-Issue Information Retrieval Unit (Invader Zim) | |
| ** | SIR | Smooth Interpersonal Relationship | |
| ** | SIR | Supplier Information Request | |
| ** | SIR | Source Initiated Reservation | |
| ** | SIR | Society of Individual Rights (1960s San Francisco homophile group) | |
| ** | SIR | Skill Independent Regional (Visas) | |
| ** | SIR | Scheduled Inspection and Repair | |
| ** | SIR | Site Inspection Request | |
| ** | SIR | Service Implementation Repository | |
| ** | SIR | Semiannual Inventory Report | |
| ** | SIR | Smith Industrial Rubber | |
| ** | SIR | Software Incident Report | |
| ** | SIR | Sooner International Raceway | |
| * | SIR | Sensitive, Intermediate, Resistant | |
| * | SIR | Safety Interlock Relay | |
| * | SIR | Set Iron Rod | |
| * | SIR | Sveriges Inredningsarkitekters Riksförbund | |
| * | SIR | Search, Inspection & Recovery | |
| * | SIR | Society of Independent Representatives Inc | |
| * | SIR | Special Inspection Requirement | |
| * | SIR | Sequential Independent Reviews | |
| * | SIR | Stored Information Retriever | |
| * | SIR | Supervisor Investigation Reports (insurance) | |
| * | SIR | Surveillance Information Retrieval (gaming) | |
| * | SIR | Special Investigative Requirement | |
| * | SIR | Scramble Intercept Recovery | |
| * | SIR | School of International Relations (Iran) | |
| * | SIR | Short Interest Ratio (finance) | |
| * | SIR | Single Interactive Repository (computing) | |
| * | SIR | Starting Independent Researcher (European Research Council grant) | |
| * | SIR | Social Indicators Research (various organizations) | |
| Note: We have 250 other definitions for SIR in our Acronym Attic | |||
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