I. kənˈgrüən](t)s, känˈg-, ˈkänˌg-, ˈkäŋˌg-; ˈkäŋgrəwən] noun
( -s )
Etymology: Middle English, from Latin congruentia, from congruent-, congruens + -ia
1. : the quality or state of according or coinciding : congruity , harmony
2. : agreement 4
II. noun
: a statement that two numbers, mathematical expressions (as polynomials), or geometric figures are congruent