The way in which two or more concepts, objects, or people are connected; a connection or association. The relation between the two variables was clearly demonstrated in the study.
A person who is connected by blood or marriage; a relative. She invited all her relations to the family reunion.
The way in which two or more people or groups regard and behave toward each other. The diplomatic relations between the two countries have improved significantly.
(Mathematics) A set of ordered pairs, or more generally a subset of a Cartesian product, that expresses a correspondence between elements of two sets. In set theory, a function is a special type of relation in which every input has exactly one output.
An account or narration of events; a telling. The explorer's relation of his journey fascinated the audience.