Relation

• International relations, the study of interconnection of politics, economics, and law on a global level
• Interpersonal relationship, association or acquaintance between two or more people
• Public relations, managing the spread of information to the public
• Sexual relations, or human sexual activity
• Social relation, in social science, any social interaction between two or more individuals

• Relation (philosophy), links between properties of an object
• Relational theory, framework to understand reality or a physical system

A finitary or n-ary relation is a set of n-tuples. Specific types of relations include:

• Relation (mathematics)
• Binary relation (or correspondence, dyadic relation, or 2-place relation)
• Equivalence relation
• Homogeneous relation
• Reflexive relation
• Serial relation
• Ternary relation (or triadic, 3-adic, 3-ary, 3-dimensional, or 3-place relation)

Relation may also refer to:

• Directed relation
• Relation algebra, an algebraic structure inspired by algebraic logic

• Relational model, an approach to managing data
  • Relation (database), a component of a relational database
  • Relational algebra
  • Relational calculus
  • Relational database, a digital database
• Relationships (also known as relations), one of the ontology components

• Relation aller Fürnemmen und gedenckwürdigen Historien, the first newspaper
• Relation (1982 film), a 1982 Japanese short experimental film
• Relations (album), a 2004 album of cover versions by Kathryn Williams

• Relate (disambiguation)
• Relationism (disambiguation)
• Relationship (disambiguation)
  • Kinship, in anthropology and generally, the web of human social relationships, or an affinity between entities because of some characteristics
  • Coefficient of relationship in biology
• Relative (disambiguation)
• Relativism
• Relativity (disambiguation)
• All pages with titles containing relation
• All pages with titles containing relations