coincidence
n. US //koʊˈɪnsɪdəns// UK //kəʊˈɪnsɪdəns// co·in·ci·dence
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1 mathematical point (n.) C2 Proficiency Technical Matha point where two different things, like lines or shapes, meet or match perfectly.
a point at which two or more functions, mappings, or geometric figures have the same value or position.
ExampleThe professor explained how to find the coincidence point of the two lines on the graph.
ExampleIn fixed-point theory, a coincidence point for two mappings is a point in their domain that maps to the same element in the codomain.
From Middle French coincidence (French coïncidence). By surface analysis, coincide + -ence.