# DOS

> English word · Noun · IPA /diː oː ˈɛs/ · frequency rank #11,370

## Definitions
1. Initialism of date of service.
2. Initialism of date of separation.
3. Initialism of denial of service.
4. Initialism of density of states.
5. Initialism of director of studies.
6. Initialism of disk operating system
7. Initialism of death on scene.

## Easily confused with
- **Dr** (https://plainspell.com/en/vs/dos-vs-dr)
- **DS** (https://plainspell.com/en/vs/dos-vs-ds)
- **DT** (https://plainspell.com/en/vs/dos-vs-dt)
- **DP** (https://plainspell.com/en/vs/dos-vs-dp)
- **dw** (https://plainspell.com/en/vs/dos-vs-dw)
- **Dx** (https://plainspell.com/en/vs/dos-vs-dx)
- **DV** (https://plainspell.com/en/vs/dos-vs-dv)
- **dy** (https://plainspell.com/en/vs/dos-vs-dy)
- **DQ** (https://plainspell.com/en/vs/dos-vs-dq)
- **due** (https://plainspell.com/en/vs/dos-vs-due)
- **dry** (https://plainspell.com/en/vs/dos-vs-dry)
- **DVD** (https://plainspell.com/en/vs/dos-vs-dvd)
- **duo** (https://plainspell.com/en/vs/dos-vs-duo)
- **dot** (https://plainspell.com/en/vs/dos-vs-dot)
- **dug** (https://plainspell.com/en/vs/dos-vs-dug)
- **dye** (https://plainspell.com/en/vs/dos-vs-dye)
- **dub** (https://plainspell.com/en/vs/dos-vs-dub)
- **dow** (https://plainspell.com/en/vs/dos-vs-dow)
- **duh** (https://plainspell.com/en/vs/dos-vs-duh)
- **Dre** (https://plainspell.com/en/vs/dos-vs-dre)

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