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Word(s) in meaning: chat "global warming" Postal codes: USA: 81657, Canada: T5A 0A7 
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Your abbreviation search returned 82 meanings
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| Category Filters > | All definitions (82) |
Information Technology (12) |
Military & Government (24) |
Science & Medicine (27) |
Organizations, Schools, etc. (18) |
Business & Finance (16) |
Slang, Chat & Pop culture (3) |
| sort results: alphabetical | rank ? | |||
| Rank | Abbr. | Meaning | |
|---|---|---|---|
| ****** | IRS | Internal Revenue Service (US government) | |
| ****** | IRS | Insulin Receptor Substrate | |
| ****** | IRS | Indoor Residual Spraying (mosquito control) | |
| ****** | IRS | Independent Rear Suspension | |
| ****** | IRS | Interest Rate Swap | |
| ***** | IRS | Indian Remote Sensing Satellite | |
| ***** | IRS | Infrared Spectrograph | |
| ***** | IRS | Insulin Resistance Syndrome | |
| ***** | IRS | Information Retrieval System | |
| ***** | IRS | Indian Register of Shipping (Indian ship classification society) | |
| **** | IRS | Imposto Sobre o Rendimento das Pessoas Singulares (Portuguese tax) | |
| **** | IRS | Inertial Reference System | |
| **** | IRS | Incident Reporting System | |
| **** | IRS | Interface Requirements Specification | |
| **** | IRS | Information Referral Services (Ontario, Canada) | |
| **** | IRS | Information Reporting System | |
| **** | IRS | Increasing Returns to Scale | |
| **** | IRS | Indian Revenue Service (India) | |
| **** | IRS | Investor Relations Society | |
| **** | IRS | International Register of Shipping (est. 1993; shipping industry) | |
| **** | IRS | Inventory Reduction Sale | |
| *** | IRS | Irwin R. Schyster (pro wrestler) | |
| *** | IRS | Internal Review Service (UK) | |
| *** | IRS | International Radar Symposium | |
| *** | IRS | Intelligence Research Specialist (FBI) | |
| *** | IRS | Institute of Regional Studies (Pakistan government) | |
| *** | IRS | Integrated Resorts Scheme (Mauritius) | |
| *** | IRS | Informal Resolution System | |
| *** | IRS | International Referral System (now INFOTERRA) | |
| *** | IRS | Inherited Runners Scored (baseball; runner on base who scores after a new pitcher enters) | |
| *** | IRS | Intel Research Seattle | |
| *** | IRS | International Rorschach Society | |
| *** | IRS | Illinois Radiological Society | |
| *** | IRS | Interest Rate Support | |
| *** | IRS | Infrared Locking System (automobiles) | |
| *** | IRS | Internationally Recruited Staff | |
| *** | IRS | Intermediate Reference System | |
| *** | IRS | International Research and Studies Program (US) | |
| *** | IRS | Intelligent Register System (Q.I. Press Controls) | |
| *** | IRS | Industrial Relations Survey (UK) | |
| *** | IRS | Information Receiving Station | |
| ** | IRS | Infrared Soldering | |
| ** | IRS | Interstate Repeater Society | |
| ** | IRS | Ionizing Radiation Standards Group (National Research Council of Canada, Ottawa, Canada) | |
| ** | IRS | I'll Return Shortly | |
| ** | IRS | Ignition Radiation Suppression | |
| ** | IRS | Incident Response Service | |
| ** | IRS | Indian Remote Sensing System | |
| ** | IRS | Inland Refugee Society (Vancouver, British Columbia, Canada) | |
| ** | IRS | Index of Retail Saturation | |
| ** | IRS | International Reference Star (set of star catalogs) | |
| ** | IRS | Interferometric Rayleigh Scattering | |
| ** | IRS | Item Reduction Study | |
| ** | IRS | Input Record Seperator (Perl programming language) | |
| ** | IRS | Increasing Radius Search | |
| ** | IRS | Imagery Requirements Structure | |
| ** | IRS | Individual Readiness Survey (education) | |
| ** | IRS | Infrastructure Requirements Specification | |
| ** | IRS | Interference Reduction System | |
| ** | IRS | Infrared Suppressor | |
| ** | IRS | Institute of Railway Signal Engineers (UK) | |
| ** | IRS | Indiana Railroad System | |
| ** | IRS | Indefinite Reserve Status | |
| * | IRS | Induction and Recruiting Station | |
| * | IRS | Installation Readiness System | |
| * | IRS | Institute for Reactor Safety, Germany (now Gesellschaft für Anlagen- und Reaktorsicherheit mbH) | |
| * | IRS | Integrated Resource and Schedule | |
| * | IRS | International Racing System | |
| * | IRS | International Russian Society | |
| * | IRS | Integrated Review Software | |
| * | IRS | Integrated Reconstructed Spectrum | |
| * | IRS | Individual Research Study | |
| * | IRS | Inferno Reckless Summonn (Yu-Gi-Oh) | |
| * | IRS | Impulse Radio Sequence | |
| * | IRS | International Reply Service | |
| * | IRS | Interactive Response System (educational remote control) | |
| * | IRS | Insulin Receptor Signaling | |
| * | IRS | Immune Reconstitution Syndrome | |
| * | IRS | Identical, Related and Similar (US DHHS) | |
| * | IRS | Image Retrieval System (computing) | |
| * | IRS | Intra Renal Surgery | |
| * | IRS | Investment Research Service | |
| Note: We have 250 other definitions for IRS in our Acronym Attic | |||
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