Boundary or Boundaries may refer to: *

Border Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political borders c ...

, 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. Edge of the field The b ...

, the edge of the playing field, or a scoring shot where the ball is hit to or beyond that point *

Boundary (sports) The "sidelines" are the white or colored lines which mark the outer boundaries of a sports field, running parallel to each other and perpendicular to the goal lines. The sidelines are also where the coaching staff and players out of play ope ...

, the sidelines of a field

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 of not belonging to the interior of . An element of the boundary of is called a boundary point of . The term boun ...

, 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) In graph theory, the outer boundary of a Glossary of graph theory#subgraph, subgraph of a graph (discrete mathematics), graph is the set of vertex (graph theory), vertices of not in that have a common edge (graph theory), edge with a vertex i ...

, the vertices of edges between a subgraph and the rest of a graph *

Boundary (chain complex) In algebraic topology, a -chain is a formal linear combination of the -cells in a cell complex. In simplicial complexes (respectively, cubical complexes), -chains are combinations of -simplices (respectively, -cubes), but not necessarily connecte ...

, its abstractization in chain complexes *

Boundary value problem In mathematics, in the field of differential equations, a boundary value problem is a differential equation together with a set of additional constraints, called the boundary conditions. A solution to a boundary value problem is a solution to t ...

, 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 skill that has been popularized by self help authors and support groups since the mid 1980s. It is the practice of openly communicating and asserting personal values as way to pr ...

, a life skill for protecting against having personal values compromised or violated *

Boundaries of the mind Boundaries of the mind refers to a personality trait concerning the degree of separateness ("thickness") or connection ("thinness") between mental functions and processes. Thin boundaries are associated with open-mindedness, sensitivity, vulnerab ...

, 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 i ...

, relationship between any professional and their client * Symbolic boundaries, a theory of how people form social groups proposed by cultural sociologists *

Boundary-work In science studies, boundary-work comprises instances in which boundaries, demarcations, or other divisions between fields of knowledge are created, advocated, attacked, or reinforced. Such delineations often have high stakes involved for the p ...

, sociology of divisions between fields of knowledge

Places

Boundary, Derbyshire Boundary is a large hamlet in South Derbyshire situated between the towns of Swadlincote and Ashby de la Zouch on the A511 route. It is west of the village of Smisby and forms part of the county border with Leicestershire, hence its name. Residen ...

, a civil parish and hamlet in South Derbyshire, England * Boundary, Leicestershire, a village in 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 abb ...

, 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 p ...

, also known as the Boundary Range, a mountain range in British Columbia, Canada and Alaska, United States *

Boundary County, ID Boundary County is the northernmost county of the U.S. state of Idaho. As of the 2020 census, the population was 12,056. The county seat and largest city is Bonners Ferry. Boundary County was created by the Idaho Legislature on January 23, 1 ...

, 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 o ...

, a region of southern British Columbia, Canada **

Kootenay Boundary Regional District The Regional District of Kootenay Boundary (RDKB) is one of 28 List of regional districts of British Columbia, regional districts in the province of British Columbia, Canada. As of the 2016 Canadian census, the population was 31,447. The area is ...

, 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 prev ...

, a provincial electoral district in British Columbia **

Okanagan-Boundary Okanagan-Boundary was a provincial electoral district in the Canadian province of British Columbia spanning the area from the Similkameen towns of Kaleden and Keremeos to Grand Forks and Christina Lake, and including the southern Okanagan towns o ...

, a former provincial electoral district in British Columbia **

Boundary-Similkameen Boundary-Similkameen is a provincial riding formed in 2008. It includes the populations of Penticton-Okanagan Valley, West Kootenay-Boundary and Yale-Lillooet. The riding's name corresponds to that of a former riding in the same area, with sim ...

, 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 buil ...

, 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 name ...

, 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 boundary on the Stikine River's west (right) bank. The customs post ...

, 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 (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily loc ...

, 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 or a lot line). The boundary (in Latin: ''limes'') may appear as a discontinuation in the terrain: a ditch, a bank, a hedge, a ...

, the legal boundary between units of real property *

Boundary (company) Boundary is an Application Performance Management (APM) company based in San Francisco, California. Boundary’s APM solution, also called Boundary, is delivered in a software as a service (SaaS) model. Boundary’s APM software can monitor appl ...

, an American application performance management company *

Boundary critique Boundary critique (BC) is the concept in critical systems thinking that, according to Ulrich (2002), states that "both the meaning and the validity of professional proposition In logic and linguistics, a proposition is the meaning of a declarati ...

, 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 Moosehead Breweries Limited is List of Oldest Breweries of Canada, Canada's oldest independent brewery, located in Saint John, New Brunswick. The brewery was founded in 1867 and is still privately owned and operated by the Oland family. The comp ...

*Geological boundary, a boundary between different

geological unit A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it ...

s *Boundary, software for secure remote access to systems based on trusted identity developed by

HashiCorp HashiCorp is a software company with a freemium business model based in San Francisco, California. HashiCorp provides open-source tools and commercial products that enable developers, operators and security professionals to provision, secure, run ...

Entertainment

Mathematics and physics

Psychology and sociology

Places

Other uses

See also