IRR

See also: irr and Irr

Translingual

Symbol

IRR

1. (international standards) ISO 4217 currency code for the Iranian rial.

English

English Wikipedia has an article on:

IRR

Wikipedia

Proper noun

IRR

1. (military, US) Initialism of Individual Ready Reserve.
2. (Internet) Initialism of Internet Routing Registry.

Noun

IRR (plural IRRs)

1. (finance) Initialism of Internal rate of return.