• enPR: rĭ-lā'shən, IPA: /ɹɪˈleɪʃən/


  1. The manner in which two things may be associated.
    The relation between diet and health is complex.
    • 1910, Emerson Hough, chapter II, in The Purchase Price: Or The Cause of Compromise, Indianapolis, Ind.: The Bobbs-Merrill Company, OCLC 639762314 ↗, page 0147 ↗:
      Carried somehow, somewhither, for some reason, on these surging floods, were these travelers, of errand not wholly obvious to their fellows, yet of such sort as to call into query alike the nature of their errand and their own relations. It is easily earned repetition to state that Josephine St. Auban's was a presence not to be concealed.
  2. A member of one's family.
    Yes, he's a relation of mine, but only a distant one.
  3. The act of relating a story.
    Your relation of the events is different from mine.
    • 1669, Letter from Dr. Merrett to Thomas Browne, in Simon Wilkin (ed.), Sir Thomas Browne’s Works including his Life and Correspondence, London: William Pickering, 1836, Volume I, p. 443,
      Many of the lupus piscis I have seen, and have bin informed by the king’s fishmonger they are taken on our coast, but was not satisfied for some reasons of his relation soe as to enter it into my Pinax […]
    • 1691, Arthur Gorges (translator), The Wisdom of the Ancients by Francis Bacon (1609), London, Preface,
      […] seeing they are diversly related by Writers that lived near about one and the self-same time, we may easily perceive that they were common things, derived from precedent Memorials; and that they became various, by reason of the divers Ornaments bestowed on them by particular Relations […]
  4. (set theory) A set of ordered tuples.
    • […] Signs are, first of all, physical things: for example, chalk marks on a blackboard, pencil or ink marks on paper, sound waves produced in a human throat. According to Reichenbach, "What makes them signs is the intermediary position they occupy between an object and a sign user, i.e., a person." For a sign to be a sign, or to function as such, it is necessary that the person take account of the object it designates. Thus, anything in nature may or may not be a sign, depending on a person's attitude toward it. A physical thing is a sign when it appears as a substitute for, or representation of, the object for which it stands with respect to the sign user. The three-place relation between sign, object, and sign user is called the sign relation or relation of denotation.
  5. (set theory) Specifically, a set of ordered pairs.
    Equality is a symmetric relation, while divisibility is not.
  6. (databases) A set of ordered tuples retrievable by a relational database; a table.
    This relation uses the customer's social security number as a key.
  7. (mathematics) A statement of equality of two products of generators, used in the presentation of a group.
  8. (category theory) A subobject of a product of objects.
  9. (usually collocated: sexual relation) The act of intercourse.
Synonyms Related terms Translations Translations Translations Translations Translations
  • Russian: повествова́ние

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