Correspondence is a body of letters or communications. If you've ever had a pen pal or an email buddy, you’ve written plenty of correspondence.

Besides referring to that stack of love letters you've bound up with ribbon, correspondence has a couple of other meanings, too. When you and your friend hold similar opinions about a particular subject, your thoughts are in correspondence, or "agreement." In mathematics, symmetrical objects are in correspondence — that is, they mirror each other exactly.

Definitions of correspondence
  1. noun
    (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
    synonyms: balance, symmetricalness, symmetry
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    asymmetry, dissymmetry, imbalance
    (mathematics) a lack of symmetry
    geometrical regularity, regularity
    a property of polygons: the property of having equal sides and equal angles
    bilateral symmetry, bilateralism, bilaterality
    the property of being symmetrical about a vertical plane
    radial symmetry
    the property of symmetry about an axis
    type of:
    spatial property, spatiality
    any property relating to or occupying space
  2. noun
    the relation of corresponding in degree or size or amount
    synonyms: commensurateness, proportionateness
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    type of:
    a ratio of two quantities that is constant
  3. noun
    similarity by virtue of corresponding
    synonyms: parallelism
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    type of:
    the quality of being similar
  4. noun
    compatibility of observations
    “the results of two tests were in correspondence
    synonyms: agreement
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    conformance, conformity
    correspondence in form or appearance
    justness, nicety, rightness
    conformity with some esthetic standard of correctness or propriety
    conformity with the norm
    type of:
    capability of existing or performing in harmonious or congenial combination
  5. noun
    communication by the exchange of letters
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    a rectangular piece of stiff paper used to send messages (may have printed greetings or pictures)
    get-well card
    a card expressing get-well wishes
    greeting card
    a card sent to express personal greetings
    mailing-card, post card, postal card, postcard
    a card for sending messages by post without an envelope
    sympathy card
    a card expressing sympathy
    type of:
    1st class, 1st-class mail, first class, first-class mail
    mail that includes letters and postcards and packages sealed against inspection
    black and white, written communication, written language
    communication by means of written symbols (either printed or handwritten)
Word Family

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