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domain name system Syllabification: do·main name sys·tem

Entry from US English dictionary

(abbreviation: DNS)

Definition of domain name system in English:

noun

Computing
The system by which Internet domain names and addresses are tracked and regulated.
Example sentences
  • Five years ago, I began writing about the challenges of creating a truly multilingual domain name system.
  • The domain name system hums along behind the scenes and, as with running water, we largely take it for granted.
  • More than a third of companies are vulnerable to the kind of domain name system problems that made Microsoft's web sites unavailable this week.

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