[ kong-groo-uhns, kuhn-groo-, kuhng- ]
See synonyms for congruence on
  1. the quality or state of agreeing or corresponding.

  2. Mathematics. a relation between two numbers indicating that the numbers give the same remainder when divided by some given number.: Compare residue (def. 4b).

  1. Geometry. the relationship that exists between two figures when one can be superimposed over the other and all their angles and sides coincide, as a mirror image: the congruence of trapezoids with identical measurements.

Origin of congruence

First recorded in 1400–50; late Middle English, from Latin congruentia, derivative of congruent- congruent; see -ence

Other words from congruence

  • non·con·gru·ence, noun

Words Nearby congruence Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use congruence in a sentence

British Dictionary definitions for congruence


congruency (ˈkɒŋɡrʊənsɪ)

/ (ˈkɒŋɡrʊəns) /

  1. the quality or state of corresponding, agreeing, or being congruent

  2. maths the relationship between two integers, x and y, such that their difference, with respect to another positive integer called the modulus, n, is a multiple of the modulus. Usually written xy (mod n), as in 2511 (mod 7)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012