Boundary or Boundaries may refer to:
Border, in political geography
Entertainment Boundaries (2016 film), a Canadian film Boundaries (2018 film), an American-Canadian road trip film Boundaries (band), an American metalcore band Boundary (cricket), 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 online game set in outer space
Mathematics and physics Boundary (topology), 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 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, 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, 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, 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, a village in Staffordshire, England Boundary Ranges, 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, a region of southern British Columbia, Canada Kootenay Boundary Regional District, a regional district in British Columbia West Kootenay-Boundary, a provincial electoral district in British Columbia Okanagan-Boundary, a former provincial electoral district in British Columbia Boundary-Similkameen, a former provincial electoral district in British Columbia Boundary Falls, British Columbia, also known as Boundary, a former railway town in the Boundary Country of British Columbia Boundary Waters, a region on the boundary between Ontario and Minnesota Stikine, British Columbia, called Boundary from 1930 to 1964, a former customs post on the Stikine River at the Alaska–British Columbia border Boundary City, Indiana, a community in the United States
Other uses , a number of ships with this name Boundaries in landscape history, the divide between areas of differing land used Boundary (real estate), 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
See also
Boundary representation Bound (disambiguation) The Boundary (disambiguation)
Border (disambiguation) Demarcation (disambiguation)