1. occur at or during the same time: "publication is timed to coincide with a major exhibition"Similaroccur simultaneouslyhappen togetherhappen at the same timebe concurrentcoexistconcurclashconflict
▪ correspond in position; meet or intersect: "the two long-distance walks briefly coincide here"
▪ be in agreement:"the members of the College coincide in this opinion"
Word Originearly 18th century (in the sense ‘occupy the same space’): from medieval Latin coincidere, from co- ‘together with’ + incidere ‘fall upon or into’.