DOS

¹

[daws, dos]

noun

Computers.

1. any of several single-user, command-driven operating systems for personal computers, especially MS DOS.

DOS

²

abbreviation

1. Department of State.

DoS

³

[daws, dos, dee-oh-es]

abbreviation

1. Computers.,  denial-of-service.

   DoS protection for web servers.

DOS

/ dɒs /

acronym

1. disk-operating system, often prefixed, as in MS-DOS and PC-DOS; a computer operating system

Word History and Origins

Origin of DOS¹

d(isk) o(perating) s(ystem)

Related Words

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• double 
• pair 
• team