# doer vs DOS

> English confusable word pair

## The two words

### doer
*noun · IPA /ˈduː.ə/ · frequency rank #44,171*
Someone who does, performs, or executes; an active person, an agent.

### 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/doer-vs-dos