dos

1 of 2
variants or do's
Synonyms of dosnext

plural of do entry 2

DOS

2 of 2

noun

ˈdäs How to pronounce DOS (audio)
: the operating system of a computer that can be stored on and run off of a computer disk drive

Word History

Etymology

Noun

disk operating system

First Known Use

Noun

1967, in the meaning defined above

Time Traveler
The first known use of dos was in 1967

Dictionary Entries Near dos

dory trawler

dos

DOS

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Cite this Entry

“Dos.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dos. Accessed 30 Dec. 2024.

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Medical Definition

dos

abbreviation
dosage

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