# is vs ISA

> English confusable word pair

## The two words

### is
*verb · IPA /ɪz/ · frequency rank #8*
third-person singular simple present indicative of be

### ISA
*noun · IPA /ˈaɪsə/ · frequency rank #13,178*
Initialism of instruction set architecture.

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