dos

1 of 2

variants or do's

plural of do entry 2

DOS

2 of 2

noun

ˈdäs 

: the operating system of a computer that can be stored on and run off of a computer disk drive

Examples of dos in a Sentence

Recent Examples on the Web

Noun

Another was Steyn van Ark, a year older, who plays at DOS Kampen. — Daniel Taylor, New York Times, 13 Sep. 2025

As part of her entry into DOS, Allison wore permanent jewelry at Keith’s behest. — Elisabeth Garber-Paul, Rolling Stone, 25 Nov. 2025

The deal allowed Microsoft to do business around DOS with several other PC makers, leading the software to become pervasive. — Ashley Capoot,jordan Novet, CNBC, 11 May 2026

There's also a 3-inch smart screen, which can be used for system control and visual feedback, but can also run DOS games or use the onboard NPU to run basic AI. — PC Magazine, 3 Nov. 2025

Word History

Etymology

Noun

disk operating system

First Known Use

Noun

1967, in the meaning defined above

Rhymes for dos

• blas
• bos
• boss
• bosse
• clos
• crosse
• doss
• dross
• floss
• foss
• fosse
• gloss

Medical Definition

dos

abbreviation

dosage