Double-checking I picked a good word with Domain: I did. DOMAIN [via Wikipedia] Mathematics- -* Domain of a function, the set of input values for which the function is defined -* Domain of discourse, the set of entities over which logic variables may range -* Domain of an algebraic structure, the set on which the algebraic structure is defined -* Domain (mathematical analysis), an open connected set -* Domain theory, studying certain kinds of partially ordered sets -* Domain (ring theory), a nontrivial ring without left or right zero divisors –* Integral domain, a non-trivial commutative ring without zero divisors —* Atomic domain, an integral domain in which every non-zero non-unit is a finite product of irreducible elements —* Bezout domain, an integral domain in which the sum of two principal ideals is again a principal ideal —* Euclidean domain, an integral domain which allows a suitable generalization of the Euclidean algorithm —* Dedekind domain, an integral domain in which every nonzero proper ideal factors into a product of prime ideals —* GCD domain, an integral domain in which every two non-zero elements have a greatest common divisor —* Principal ideal domain, an integral domain in which every ideal is principal —* Unique factorization domain, an integral domain in which every non-zero element can be written as a product of irreducible elements in essentially a unique way -* Frequency domain, the analysis of mathematical functions with respect to frequency, rather than time -* Fundamental domain, a symmetry group of an object is a part or pattern, as small or irredundant as possible, which determines the whole object based on the symmetry -* Time domain, the analysis of mathematical functions with respect to time Science- -* Domain (biology), a taxonomic subdivision larger than a kingdom -* High-field domain (physics) in semiconductors, also called Boer domain -* Protein domain (biology), a part of a protein that can exist independently of the rest of the protein chain -* Magnetic domain (physics), a region within a magnetic material which has uniform magnetization -* Social domain, a concept in sociology -* Domain of discourse, the collection of entities of interest in logical analysis Information technology- -* Administrative domain -* Broadcast domain, in computer networking, a group of special-purpose addresses to receive network announcements -* Collision domain -* Domain (software engineering), a field of study that defines a set of common requirements, terminology, and functionality for any software program constructed to solve a problem in a given field –* Application domain, a mechanism used within a Common Language Infrastructure to isolate executed software applications from one another –* Programming domain, a set of programming languages or programming environments that were engineered specifically for a particular domain (software engineering) -* Network domain, a named grouping of hosts and servers with managed login, access to resources, and permissions. –* Domain name, a label that identifies a realm of administrative autonomy, authority, or control within the Internet Other uses- -* Territory (subdivision), a non-sovereign geographic area which has come under the authority of another government -* Demesne, in English common law and other Medieval European contexts, lands directly managed by their holder rather than being delegated to subordinate managers -* Domain, or Battlespace, a concept in military operations dividing operating environments into defined components: air, land, maritime, space, cyberspace, information, and electromagnetic spectrum

Double-checking I picked a good word with Domain: I did.
DOMAIN [via Wikipedia]
Mathematics-

-* Domain of a function, the set of input values for which the function is defined
-* Domain of discourse, the set of entities over which logic variables may range
-* Domain of an algebraic structure, the set on which the algebraic structure is defined
-* Domain (mathematical analysis), an open connected set
-* Domain theory, studying certain kinds of partially ordered sets
-* Domain (ring theory), a nontrivial ring without left or right zero divisors
–* Integral domain, a non-trivial commutative ring without zero divisors
—* Atomic domain, an integral domain in which every non-zero non-unit is a finite product of irreducible elements
—* Bezout domain, an integral domain in which the sum of two principal ideals is again a principal ideal
—* Euclidean domain, an integral domain which allows a suitable generalization of the Euclidean algorithm
—* Dedekind domain, an integral domain in which every nonzero proper ideal factors into a product of prime ideals
—* GCD domain, an integral domain in which every two non-zero elements have a greatest common divisor
—* Principal ideal domain, an integral domain in which every ideal is principal
—* Unique factorization domain, an integral domain in which every non-zero element can be written as a product of irreducible elements in essentially a unique way
-* Frequency domain, the analysis of mathematical functions with respect to frequency, rather than time
-* Fundamental domain, a symmetry group of an object is a part or pattern, as small or irredundant as possible, which determines the whole object based on the symmetry
-* Time domain, the analysis of mathematical functions with respect to time

Science-

-* Domain (biology), a taxonomic subdivision larger than a kingdom
-* High-field domain (physics) in semiconductors, also called Boer domain
-* Protein domain (biology), a part of a protein that can exist independently of the rest of the protein chain
-* Magnetic domain (physics), a region within a magnetic material which has uniform magnetization
-* Social domain, a concept in sociology
-* Domain of discourse, the collection of entities of interest in logical analysis

Information technology-

-* Administrative domain
-* Broadcast domain, in computer networking, a group of special-purpose addresses to receive network announcements
-* Collision domain
-* Domain (software engineering), a field of study that defines a set of common requirements, terminology, and functionality for any software program constructed to solve a problem in a given field
–* Application domain, a mechanism used within a Common Language Infrastructure to isolate executed software applications from one another
–* Programming domain, a set of programming languages or programming environments that were engineered specifically for a particular domain (software engineering)
-* Network domain, a named grouping of hosts and servers with managed login, access to resources, and permissions.
–* Domain name, a label that identifies a realm of administrative autonomy, authority, or control within the Internet

Other uses-

-* Territory (subdivision), a non-sovereign geographic area which has come under the authority of another government
-* Demesne, in English common law and other Medieval European contexts, lands directly managed by their holder rather than being delegated to subordinate managers
-* Domain, or Battlespace, a concept in military operations dividing operating environments into defined components: air, land, maritime, space, cyberspace, information, and electromagnetic spectrum