# IRS vs ISS

> English confusable word pair

## The two words

### IRS
*name · IPA /ˈaɪ.ɑɹ.ɛs/ · frequency rank #8,440*
Initialism of Internal Revenue Service.

### ISS
*name · frequency rank #16,055*
Initialism of International Space Station.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/irs-vs-iss