Boundary or Boundaries may refer to: *

Border Borders are generally defined as geography, geographical boundaries, imposed either by features such as oceans and terrain, or by polity, political entities such as governments, sovereign states, federated states, and other administrative divisio ...

, in political geography

Entertainment

* ''Boundaries'' (2016 film), a 2016 Canadian film * ''Boundaries'' (2018 film), a 2018 American-Canadian road trip film *

Boundary (cricket) In cricket, the boundary is the perimeter of a playing field. It is also the term given to a scoring shot where the ball is hit to, or beyond, that perimeter, which generally earns four or six runs for the batting team. Briefly, if the ball ...

, the edge of the playing field, or a scoring shot where the ball is hit to or beyond that point * Boundary (sports), the sidelines of a field * ''Boundary'' (video game), a defunct 2023 multiplayer video game set in outre space

Mathematics and physics

Boundary (topology) In topology and mathematics in general, the boundary of a subset of a topological space is the set of points in the Closure (topology), closure of not belonging to the Interior (topology), interior of . An element of the boundary of is call ...

, the closure minus the interior of a subset of a topological space; an edge in the topology of manifolds, as in the case of a 'manifold with boundary' * Boundary (graph theory), the vertices of edges between a subgraph and the rest of a graph * Boundary (chain complex), its abstractization in chain complexes *

Boundary value problem In the study of differential equations, a boundary-value problem is a differential equation subjected to constraints called boundary conditions. A solution to a boundary value problem is a solution to the differential equation which also satis ...

, a differential equation together with a set of additional restraints called the boundary conditions * Boundary (thermodynamics), the edge of a thermodynamic system across which heat, mass, or work can flow

Psychology and sociology

Personal boundaries Personal boundaries or the act of setting boundaries is a Life skills, life skill that has been popularized by self help authors and support groups since the mid-1980s. Personal boundaries are established by changing one's own response to interp ...

, a life skill for protecting against having personal values compromised or violated * Boundaries of the mind, the degree of separateness between fantasy and reality *

Professional boundaries Professional boundaries are an important consideration in the relationship between any professional and their client. Nurse-client boundaries Boundaries are an integral part of the nurse-client relationship. They represent invisible structures ...

, relationship between any professional and their client * Symbolic boundaries, a theory of how people form social groups proposed by cultural sociologists * Boundary-work, sociology of divisions between fields of knowledge

Places

* Boundary, Derbyshire, a hamlet and former civil parish in South Derbyshire and Leicestershire, England *

Boundary, Staffordshire Boundary is a village in the civil parish of Forsbrook, in the Staffordshire Moorlands district, in the county of Staffordshire, England, near to the town of Cheadle. It is just outside of the city of Stoke-on-Trent Stoke-on-Trent (often ...

, a village in Staffordshire, England *

Boundary Ranges The Boundary Ranges, also known in the singular and as the Alaska Boundary Range, are the largest and most northerly subrange of the Coast Mountains. They begin at the Nass River, near the southern end of the Alaska Panhandle in the Canadian pro ...

, also known as the Boundary Range, a mountain range in British Columbia, Canada and Alaska, United States * Boundary County, ID, the northernmost county in Idaho *

Boundary Country The Boundary Country is a historical designation for a district in southern British Columbia lying, as its name suggests, along the boundary between Canada and the United States. It lies to the east of the southern Okanagan Valley and to the west ...

, a region of southern British Columbia, Canada **

Kootenay Boundary Regional District The Regional District of Kootenay Boundary (RDKB) is one of 28 regional districts in the province of British Columbia, Canada. As of the 2016 Canadian census, the population was 31,447. The area is 8,095.62 km2 (3,125.74 sq mi). The RDKB ...

, a regional district in British Columbia **

West Kootenay-Boundary West Kootenay-Boundary was a provincial electoral district for the Legislative Assembly of British Columbia, Canada from 2001 to 2009. The seat combined the Rossland/Trail/Castlegar area (the putative ''West Kootenay'' component) that had previo ...

, a provincial electoral district in British Columbia **

Okanagan-Boundary Okanagan-Boundary was a provincial electoral district in the Canadian province of British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacifi ...

, a former provincial electoral district in British Columbia **

Boundary-Similkameen Boundary-Similkameen is a provincial electoral district in British Columbia, Canada. It was formed in 2008 out of parts of Penticton-Okanagan Valley, West Kootenay-Boundary and Yale-Lillooet. The riding's name corresponds to that of a form ...

, a former provincial electoral district in British Columbia *

Boundary Falls, British Columbia Boundary Falls is a locality in the Boundary Country of the Southern Interior of British Columbia, south of the city of Greenwood and west of the city of Grand Forks, British Columbia. The small community, which consists of only a few small ...

, also known as Boundary, a former railway town in the Boundary Country of British Columbia *

Boundary Waters The Boundary Waters, also called the Quetico-Superior Country, is a region of wilderness straddling the Canada–United States border between Ontario and Minnesota, in the area just west of Lake Superior. While "Boundary Waters" is a common nam ...

, a region on the boundary between Ontario and Minnesota *

Stikine, British Columbia Stikine, also known formerly as Boundary, is an unincorporated locality and former customs post on the Stikine River, located on the Canadian side of the British Columbia-Alaska Alaska ( ) is a non-contiguous U.S. state on the northw ...

, called Boundary from 1930 to 1964, a former customs post on the Stikine River at the Alaska–British Columbia border *

Boundary City, Indiana Boundary City is an unincorporated community in Pike Township, Jay County, Indiana, in the United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North Americ ...

, a community in the United States

Other uses

*, a number of ships with this name *

Boundaries in landscape history Boundaries—particularly field boundaries—are among the oldest features in an English rural landscape. Although a boundary itself is an abstract concept, the boundary can often be seen by differences in land use on either side. Longevity of bou ...

, the divide between areas of differing land used *

Boundary (real estate) A unit of real estate or immovable property is limited by a legal boundary (sometimes also referred to as a property line, lot line or bounds). The boundary (in Latin: ''limes'') may appear as a discontinuation in the terrain: a ditch, a bank, a ...

, the legal boundary between units of real property *Boundary (company), an American application performance management company * Boundary critique, a concept about the meaning and validity of propositions * Boundary turbulence, a break in expectation of how private information is held within a group of knowledge owners *Boundary Ale, a beer made by Moosehead Breweries *Geological boundary, a boundary between different geological units *Boundary, software for secure remote access to systems based on trusted identity developed by

HashiCorp HashiCorp, Inc. is an American software company with a freemium business model based in San Francisco, California. HashiCorp provides tools and products that enable developers, operators and security professionals to provision, secure, run and co ...

Entertainment

Mathematics and physics

Psychology and sociology

Places

Other uses

See also