Domain

[Sarah]

Ownership of land; an estate or patrimony which one has in hisown right; absolute proprietorship; paramount or sovereign ownership.Public domain, the territory belonging to a State or to the generalgovernment; public lands. [U.S.]in the public domain may be used byanyone wihout restriction.-- Right of eminent domain, that superior dominion of the sovereignpower over all the property within the state, including thatpreviously granted by itself, which authorizes it to appropriate anypart thereof to a necessary public use, reasonable compensation beingmade.

[Sarah]

An area, [region] or place that usually belongs to someone; i.e. [territory].

[Sarah]

to take over or regulate on an object or person.

[Sarah]

A place where teachers hide because they cannot face the children waltzing into their classrooms. Many teachers fear the children and when they do not feel threatened they come out of the domain growling and barking at the students to demonstrate superiority and aggressiveness.

[Becky]

While the term domain is often used synonymously with domain name, it also has a definition specific to local networks.
A domain contains a group of computers that can be accessed and administered with a common set of rules. For example, a company may require all local computers to be networked within the same domain so that each computer can be seen from other computers within the domain or located from a central server. Setting up a domain may also block outside traffic from accessing computers within the network, which adds an extra level of security.
While domains can be setup using a variety of networking software, including applications from Novell and Oracle, Windows users are most likely familiar with Windows Network Domains. This networking option is built into Windows and allows users to create or join a domain. The domain may or may not be password-protected. Once connected to the domain, a user may view other computers within the domain and can browse the shared files and folders available on the connected systems.
Windows XP users can browse Windows Network Domains by selecting the My Network Places option on the left side of an open window. You can create a new domain by using the Network Setup Wixard. Mac users using Mac OS X 10.2 or later can also connect to a Windows Network by clicking the Network icon on the left side of an open window. This will allow you to browse local Macintosh and Windows networks using the SMB protocol.

[Julian]

An area of territory owned or controlled by a particular ruler or government.