domain

Meanings

1. 1
   noun

   territory over which rule or control is exercised

   My domain extended into Europe.

2. 2
   noun

   A geographic area owned or controlled by a single person or organization.

   The king ruled his domain harshly.

3. 3
   noun

   A field or sphere of activity, influence or expertise.

   Dealing with complaints isn't really my domain: get in touch with customer services.

4. 4
   noun

   A group of related items, topics, or subjects.

   Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.

5. 5
   noun

   Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains.

   2000, BIND 9 Administrator Reference Manual (9.3.2), Internet Software Consortium https://web.archive.org/web/20060619063455/http://www.bind9.net/manual/bind/9.3.2/Bv9ARM.ch01.html Every name in the DNS tree is a domain, even if it is terminal, that is, has no subdomains.

6. 6
   noun

   A form of technical metadata that represent the type of a data item, its characteristics, name, and usage.

   A characteristic of a field. A data domain specifies a data type and applies the minimum and maximum values allowed and other constraints.

7. 7
   noun

   the content of a particular field of knowledge

8. 8
   noun

   people in general

Etymology

Etymology tree Proto-Indo-European *dem- Proto-Indo-European *-s Proto-Indo-European *dṓmder. Proto-Italic *domanos Latin dominus Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ium Latin dominiumder. Old French demainebor. Middle English demayne English domain From Middle English demayne, demain (“rule”), from Old French demeine, demaine, demeigne, domaine (“power”), (French domaine), from Latin dominium (“property, right of ownership”), from dominus (“master, proprietor, owner”). Doublet of demesne and dominium, and closely related to dominion and domino. See al…