The noun ' coincidence ' shares its etymological roots with the verb 'coincide.' Both words trace back to the Latin word 'coincidere,' which is a combination of 'co,' meaning 'together,' and 'incidere,' meaning 'to fall upon' or 'to happen.' In the case of ' coincidence ,' the term has evolved to describe the occurrence of two or more events or circumstances that seem to fall together or happen simultaneously, even though they are unrelated and occur by chance, without any apparent causal ... Coincident refers to two or more things occurring at the same time or place, while coincidence refers to such an occurrence, especially when it seems accidental or unexpected. Learn the meaning of coincidence , a word for the fact of two things happening at the same time by chance, in a surprising way. See synonyms, collocations, word origin and usage notes with examples. Coincidence definition: a striking occurrence of two or more events at one time apparently by mere chance.. See examples of COINCIDENCE used in a sentence.