| 释义 |
- Arts and entertainment
- Economics
- Organisations
- Medicine
- Transportation
- Other uses
{{Selfref|For Wikipedia's policy on identifying reliable sources, see Identifying reliable sources.}}{{Wiktionary|IRS}}IRS is the United States Internal Revenue Service. IRS may also refer to: {{TOC right}}Arts and entertainment- I.R.S. Records
- "I.R.S.", a song by Guns N' Roses featured on their album Chinese Democracy
- Irwin R. Schyster, often abbreviated I.R.S., a ring name of professional wrestler Mike Rotunda
- IR$, a Franco-Belgian comics series telling the adventures of Larry Max, an IRS special agent
Economics- Indian Revenue Service, of the Republic of India
- Interest rate swap
- International Retail Service, a service provided by the London Stock Exchange
- Imposto Sobre Rendimentos Singulares (IRS), the Portuguese income tax on natural persons
Organisations- Independence Republic of Sardinia, an independentist political party in Sardinia, Italy
- Institute of Regional Studies
- Leibniz Institute for Research on Society and Space, a research institute in Germany and part of the Leibniz Association
Medicine- Indoor residual spraying, the spraying of insecticide to kill the mosquitoes that spread malaria
- Insulin receptor substrate, a protein family involved in the insulin signaling pathway (insulin response)
- Intergroup Rhabdomyosarcoma Study Group, about the cancer, rhabdomyosarcoma
- Immune reconstitution syndrome, or Immune reconstitution inflammatory syndrome
Transportation- Independent rear suspension, a form of independent suspension, used in automobiles
- Industrial Railway Society, a UK railway society
- International Railway Standard, standards produced by the International Union of Railways
- Inertial reference system, more commonly known as an inertial navigation system
- International Railway Systems, a Romanian freight railroad car producer
- IRS Airlines, an airline of Nigeria
Other uses- International Rules Series, an international football competition between Australia and Ireland
- Indian Remote Sensing satellite
- Indian Readership Survey
- Information Retrieval System, in computer science
- Integrated reception system, for TV and radio signals
- Imperium Romanum Sacrum, the Latin name for the Holy Roman Empire
- Institutionalized Riot Systems
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