# ies vs ISP

> English confusable word pair

## The two words

### ies
*noun · frequency rank #45,988*
plural of i, the name of the letter I.

### ISP
*noun · frequency rank #20,971*
Initialism of interstellar polarization.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/ies-vs-isp