Domain
Part of speech: noun
Definition: A geographic area owned or controlled by a single person or organization. A sphere of influence. A group of related items, topics, or subjects. The set of all possible mathematical entities (points) where a given function is defined. An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers. Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains A collection of information having to do with a domain, the computers named in the domain, and the network on which the computers named in the domain reside The collection of computers identified by a domain's domain names In the three-domain system, the highest rank in the classification of organisms, above kingdom; in other taxonomic systems, a similarly high rank In the three-domain system, one of three taxa at that rank: Bacteria, Archaea, or Eukaryota.
Example sentence: It's my view that gender is culturally formed, but it's also a domain of agency or freedom and that it is most important to resist the violence that is imposed by ideal gender norms, especially against those who are gender different, who are nonconforming in their gender presentation.
Realm
Part of speech: noun
Definition: An abstract sphere of influence, real or imagined.The domain of a certain abstraction.A territory or state, as ruled by a specific power, and particularly those territories ruled by a king.
Example sentence: A day may sink or save a realm.