Occurring at the same time or occupying the same space; happening together or agreeing exactly.
From coincide, from Medieval Latin coincidere, combining co- (together) with incidere (to fall or strike). The word entered English in the 17th century.
Coinciding is fascinating because sometimes multiple independent events happen at exactly the same time—it's why people feel superstitious about 'cosmic coincidences' when two unrelated things align.
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