IRR
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Translingual
[edit]Symbol
[edit]IRR
- (international standards) ISO 4217 currency code for the Iranian rial.
English
[edit]Proper noun
[edit]IRR
- (military, US) Initialism of Individual Ready Reserve.
- (Internet) Initialism of Internet Routing Registry.
Noun
[edit]IRR (plural IRRs)
- (finance) Initialism of Internal rate of return.