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[koh-in-si-duh ns] /koʊˈɪn sɪ dəns/
a striking occurrence of two or more events at one time apparently by mere chance:
Our meeting in Venice was pure coincidence.
the condition or fact of coinciding.
an instance of this.
1595-1605; coincid(ent) + -ence
Related forms
noncoincidence, noun
precoincidence, noun
supercoincidence, noun
1. accident, luck, fate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for coincidences
  • There is really no exact start, but rather, a lifetime of small coincidences that have led me to the world of geothermal energy.
  • Confounded investigators finally decided that the words had been the product of an incredible series of coincidences.
  • The past is too great, and has come down to us in too fragmentary a manner, for such coincidences to be probable.
  • Still clearer-cut coincidences of cleavage may be found.
  • The picture that is emerging, then, is of a strange set of coincidences.
  • It is also a journey that throws up some extraordinary coincidences which, occasionally, the author allows to carry him too far.
  • Thanks to orbital coincidences, this week's flybys will be exceptionally bright.
  • These cosmic coincidences were necessary to create a universe capable of sustaining life.
  • It connotes a blind search through data, an effort that tends to confuse real patterns with mere coincidences.
  • Data fusion is challenging because databases are riddled with errors and meaningless coincidences.
British Dictionary definitions for coincidences


a chance occurrence of events remarkable either for being simultaneous or for apparently being connected
the fact, condition, or state of coinciding
(modifier) (electronics) of or relating to a circuit that produces an output pulse only when both its input terminals receive pulses within a specified interval: coincidence gate Compare anticoincidence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for coincidences



c.1600, "exact correspondence," from French coincidence, from coincider (see coincide). Meaning "a concurrence of events with no apparent connection" is from 1680s.

Online Etymology Dictionary, © 2010 Douglas Harper
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