# doo vs DOS

> English confusable word pair

## The two words

### doo
*noun · IPA /duː/ · frequency rank #12,582*
feces, particularly that of a dog.

### DOS
*noun · IPA /diː oː ˈɛs/ · frequency rank #11,370*
Initialism of date of service.

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