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congruence

noun

  1. when two figures or objects in geometry have the same shape and size, or if one has the same shape and size as the mirror image of the other
L254318 on Wikidata ↗

Wiktionary

Pronunciation: /ˈkɒŋ.ɡɹʊ.əns/ / /ˈkɑŋ.ɡɹu.əns/ / /ˈkɔŋ.ɡɹʉ.əns/

noun

Etymology: From Middle English congruence, from Latin congruentia (“agreement”), from congruēns, present active participle of congruō (“meet together, agree”).

  1. The quality of agreeing or corresponding; being suitable and appropriate.
  2. A relation between two numbers indicating they give the same remainder when divided by some given number.
  3. The quality of being isometric — roughly, the same measure and shape.
  4. Matrix similarity by an orthogonal matrix.
  5. Any equivalence relation defined on an algebraic structure which is preserved by operations defined by the structure.
  6. A well-adjusted state or condition in which people are not lying to themselves or in denial.