congruence
UK: ˈkɒŋɡrʊəns | US: ˈkɑːŋɡruːəns
n. the state of agreement or harmony between things
n. (mathematics) the property of having identical shape and size (e.g., geometric figures)
congruence = con<together> + gru<agree> + ence<noun suffix>
- con<together>: From Latin cum, meaning "with" or "together."
- gru<agree>: From Latin gruere (base of congruere), meaning "to come together" or "agree."
- ence<noun suffix>: Forms abstract nouns indicating a state or quality (e.g., "existence").
Etymology Origin:
The word congruence traces back to Latin congruentia, derived from congruere ("to come together, agree"). The root gru- (as in congruere) implies harmony or alignment, while con- emphasizes unity. Over time, it evolved into Middle French congruence before entering English, retaining its core idea of agreement—whether in abstract harmony (e.g., ideas) or precise mathematical equivalence.
The congruence between their values made collaboration effortless.
In geometry, two triangles are said to have congruence if their sides and angles match.
The design team ensured congruence between the brand’s vision and the final product.
His actions lacked congruence with his stated principles.
The theorem proves the congruence of the two polygons under rotation.