Domain is the distinguished part of an abstract or physical space where something exists, is performed, or is valid. For example, we may talk about: domain of interest, domain of activity. This concept is used in every branch/sector/field of human activity.
in several Commonwealth countries, the name for parkland made available for public use by the monarch or their representative, the Governor. Examples include:
a collection of network devices that are organized under a common network name (Domain name), in particular in the Internet Domain Name System (DNS) (example.com, for example)
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