correspondence

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
    see moresee less
    Antonyms:
    asymmetry, dissymmetry, imbalance
    (mathematics) a lack of symmetry
    types:
    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
    see moresee less
    type of:
    proportionality
    a ratio of two quantities that is constant
  3. noun
    similarity by virtue of corresponding
    synonyms: parallelism
    see moresee less
    type of:
    similarity
    the quality of being similar
  4. noun
    compatibility of observations
    “the results of two tests were in correspondence
    synonyms: agreement
    see moresee less
    types:
    conformance, conformity
    correspondence in form or appearance
    justness, nicety, rightness
    conformity with some esthetic standard of correctness or propriety
    normality
    conformity with the norm
    type of:
    compatibility
    capability of existing or performing in harmonious or congenial combination
  5. noun
    communication by the exchange of letters
    see moresee less
    types:
    show 5 types...
    hide 5 types...
    card
    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
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week

ACT

$29.95
  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week