A territory or state, as ruled by a specific power, especially by a king.
A taxonomic rank in the phylogeny of viruses, higher than kingdoms.
A scope of operation in networking or security.
An abstract sphere of influence, real or imagined.
An otherworldly dimension or domain — magical, ethereal, or otherwise — usually ruled or created by a mystical character.
The domain of a certain abstraction.
A governmental system based on a single ruler wielding absolute authority; tyranny.
The state or condition of being a tyrant.