say it: koh-IN-si-duhns
coincidence is a noun meaning "an event that might have been arranged although it was really accidental". It carries 3 recorded senses.
an event that might have been arranged although it was really accidental
the quality of occupying the same position or area in space
“he waited for the coincidence of the target and the cross hairs”
the temporal property of two things happening at the same time
“the interval determining the coincidence gate is adjustable”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for coincidence come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.