Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym IRS is...

IRS is

  • Internal Revenue Service

More Meanings For IRS:

  • Resource (WordPerfect)
  • Interchange Recors Separator
  • Intelligent Register System
  • It Really Stinks
  • I Respect Someone
  • I'm Really Sexy
  • International Reference Star
  • Infrared Spectroscopy
  • Indian Remote Sensing
  • Inverse Repeated Sequence
  • Instructor Rating System
  • Intelligent Responsible Students
  • Intimate Relations Schedule
  • I'm Really Sexy
  • It's Really Stupid

IRS is also in:

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