# IEP vs ink

> English confusable word pair

## The two words

### IEP
*noun · frequency rank #45,987*
Initialism of isoelectric point.

### ink
*noun · IPA /ˈɪŋk/ · frequency rank #6,368*
A pigment (or dye)-based fluid used for writing, printing etc.

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