# congruent

/ˈkɔnɡɹuˌɛnt/ (US) · /kˈɒnɡɹuːənt/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/congruent
Updated: 2026-05-31

## Definition

describing two shapes that are exactly the same in size and shape. You can move or turn one to fit perfectly on top of the other.

For teachers: identical in form; coinciding exactly when superimposed. In mathematics, it describes geometric figures that have the same shape and size, or in logic, statements that are consistent with one another.

## Examples

- The two triangles are congruent because they have the same side lengths.
- The architect ensured that the two wings of the building were congruent to maintain a symmetrical appearance.
- In formal logic, a set of axioms is considered congruent if no two statements within the set can be simultaneously true without contradicting the others.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.