Definition of coincidence noun from the Oxford Advanced Learner's Dictionary

      

    coincidence

     noun
    noun
    BrE BrE//kəʊˈɪnsɪdəns//
     
    ; NAmE NAmE//koʊˈɪnsɪdəns//
     
     
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  1. 1[countable, uncountable] the fact of two things happening at the same time by chance, in a surprising way a strange/an extraordinary/a remarkable coincidence What a coincidence! I wasn't expecting to see you here. It's not a coincidence that none of the directors are women (= it did not happen by chance). By (sheer) coincidence, I met the person we’d been discussing the next day. Synonymsluckchance coincidence accident fate destinyThese are all words for things that happen or the force that causes them to happen.luck the force that causes good or bad things to happen to people:This ring has always brought me good luck.chance the way that some things happen without any cause that you can see or understand:The results could simply be due to chance.coincidence the fact of two things happening at the same time by chance, in a surprising way:They met through a series of strange coincidences.accident something that happens unexpectedly and is not planned in advance:Their early arrival was just an accident.fate the power that is believed to control everything that happens and that cannot be stopped or changed:Fate decreed that she would never reach America.destiny the power that is believed to control events:I believe there’s some force guiding us—call it God, destiny or fate.fate or destiny? Fate can be kind, but this is an unexpected gift; just as often, fate is cruel and makes people feel helpless. Destiny is more likely to give people a sense of power: people who have a strong sense of destiny usually believe that they are meant to be great or do great things.Patterns by …luck/​chance/​coincidence/​accident It’s no coincidence/​accident that… pure/​sheer luck/​chance/​coincidence/​accident to believe in luck/​coincidences/​fate/​destiny Wordfinderamulet, charm, coincidence, fate, fortune, jinx, luck, mascot, superstition, talisman
  2. 2[singular] (formal) the fact of things being present at the same time the coincidence of inflation and unemployment
  3. 3[singular] (formal) the fact of two or more opinions, etc. being the same a coincidence of interests between the two partners
  4. Word Origin early 17th cent. (in the sense ‘occupation of the same space’): from medieval Latin coincidentia, from coincidere ‘coincide, agree’, from co- ‘together with’ + incidere ‘fall upon or into’.Extra examples By an unfortunate coincidence, their house was burgled on the day he lost his job. By coincidence, we both went to the same school. It was pure coincidence that they were both in Paris on the same day. Remarkable coincidences do happen in real life. They met through a series of strange coincidences. What a happy coincidence to meet you at the airport just when I wanted to see you. By sheer coincidence, I met the person we’d been discussing the next day. It’s not a coincidence that none of the directors is a woman.
See the Oxford Advanced American Dictionary entry: coincidence