Join may refer to: * Join (law), to include additional counts or additional defendants on an indictment *In mathematics: ** Join (mathematics), a least upper bound of sets orders in lattice theory ** Join (topology), an operation combining two topological spaces ** Join (sigma algebra), a refinement of sigma algebras **

Join (algebraic geometry) In algebraic geometry, given irreducible subvarieties ''V'', ''W'' of a projective space P''n'', the ruled join of ''V'' and ''W'' is the union of all lines from ''V'' to ''W'' in P2''n''+1, where ''V'', ''W'' are embedded into P2''n''+1 so that th ...

, a union of lines between two varieties *In computing: ** Join (relational algebra), a binary operation on tuples corresponding to the relation join of SQL *** Join (SQL), relational join, a binary operation on SQL and relational database tables *** join (Unix), a Unix command similar to relational join **

Join-calculus The join-calculus is a process calculus developed at INRIA. The join-calculus was developed to provide a formal basis for the design of distributed programming languages, and therefore intentionally avoids communications constructs found in othe ...

, a process calculus developed at INRIA for the design of distributed programming languages *** Join-pattern, generalization of Join-calculus *** Joins (concurrency library), a concurrent computing API from Microsoft Research *

Join Network Studio of NENU Join Network Studio() of Northeast Normal University China is affiliated with Student Career Service Center of NENU. This is a non-profit organization composed by some undergraduate students. All departments except Software Department of the studi ...

, a non-profit organization of Northeast Normal University *

Joins.com ''The JoongAng'', formally known as ''JoongAng Ilbo'', is a South Korean daily newspaper published in Seoul, South Korea. It is one of the three biggest newspapers in South Korea, and a newspaper of record for South Korea. The paper also publ ...

, the website for South Korean newspaper ''JoongAng Ilbo'' *

Joining (woodworking) Join may refer to: * Join (law), to include additional counts or additional defendants on an indictment *In mathematics: ** Join (mathematics), a least upper bound of sets orders in lattice theory ** Join (topology), an operation combining two t ...

, woodworking processes of combining two or more pieces of wood together, generally through the use of nails or screws * Joining (metalworking), metalworking processes which combine two or more pieces of metal together, typically by the use of screws or welding

See also