# dem vs DSI

> English confusable word pair

## The two words

### dem
*pronoun · IPA /dɛm/ · frequency rank #8,533*
Nonstandard form of them.

### DSI
*noun · IPA /diː ɛs aɪ/ · frequency rank #47,027*
Initialism of diffused surface illumination.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/dem-vs-dsi