# IK vs ISC

> English confusable word pair

## The two words

### IK
*phrase · frequency rank #18,585*
Initialism of I know.

### ISC
*name · frequency rank #43,722*
Initialism of Internet Systems Consortium.

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