domain

do-main · noun

imported

Definitions

noun

  1. 1.

    A territory or area of land under the control of a ruler or government.

  2. 2.

    A sphere of knowledge, influence, or activity.

  3. 3.

    (Computing) A distinct subset of the internet with addresses sharing a common suffix.

  4. 4.

    (Mathematics) The set of possible input values for a function.

Forms

plural: domains

Phrases & expressions

  • •
    domain name — The address of a website on the internet
  • •
    public domain — Creative works not protected by copyright
  • •
    eminent domain — Government power to take private property

Related words

See also: field, realm, territory
Synonyms: field, realm, sphere, territory

Etymology

From French domaine, from Latin dominium ("property, dominion"), from dominus ("lord, master").