9 Grammatical Pitfalls


[koh-in-sahyd] /ˌkoʊ ɪnˈsaɪd/
verb (used without object), coincided, coinciding.
to occupy the same place in space, the same point or period in time, or the same relative position:
The centers of concentric circles coincide. Our vacations coincided this year.
to correspond exactly, as in nature, character, etc.:
His vocation coincides with his avocation.
to agree or concur, as in thought or opinion:
Their opinions always coincide.
Origin of coincide
1635-45; < Medieval Latin coincidere, equivalent to Latin co- co- + incidere to befall; see incident
Related forms
uncoincided, adjective
uncoinciding, adjective
3. accord, correspond, match, tally, jibe, square.
3. differ, contradict. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for coincided
  • Scientists speculate that the tremors coincided with the sideways escape of pent-up gases.
  • The rise of conceptualism coincided with a crisis: a huge generation of art students during a dire economic recession.
  • His rise and reign coincided with the emergence of the technologically adept and brand-conscious athlete.
  • The survey's findings also drew fire because its publication coincided with protests over planned tuition increases.
  • The introduction of the program coincided with the economy tanking, and it was not as popular as expected.
  • The timing of each earthquake roughly coincided with the melting of thick ice sheets from the last ice age in those same places.
  • The release coincided with the return of many exiled musicians.
  • The time coincided with the time reported for the quake.
  • The moment of glacial runoff coincided with the rapid evolution of animal life.
  • Strangely, her fainting episodes coincided with eating sandwiches and drinking fizzy beverages.
British Dictionary definitions for coincided


verb (intransitive)
to occur or exist simultaneously
to be identical in nature, character, etc
to agree
Word Origin
C18: from Medieval Latin coincidere, from Latin co- together + incidere to occur, befall, from cadere to fall
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 coincided



1715, from French coincider (14c.), from Medieval Latin coincidere (in astrological use), literally "to fall upon together," from Latin com- "together" (see co-) + incidere "to fall upon" (in- "upon + cadere "to fall;" see case (n.1)). Related: Coincided; coinciding.

Online Etymology Dictionary, © 2010 Douglas Harper
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