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synchronicity

American  
[sing-kruh-nis-i-tee] / ˌsɪŋ krəˈnɪs ɪ ti /

noun

  1. (in the psychology of Carl Jung) the simultaneous occurrence of causally unrelated events and the belief that the simultaneity has meaning beyond mere coincidence.

  2. coincidence in time; contemporaneousness; simultaneity.

  3. Physics, Electricity. the state of having the same frequency and zero phase difference.


synchronicity British  
/ ˌsɪnkrəˈnɪsɪtɪ /

noun

  1. an apparently meaningful coincidence in time of two or more similar or identical events that are causally unrelated

"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

Etymology

Origin of synchronicity

First recorded in 1865–70 synchronicity for def. 1; 1950–55 synchronicity for def. 2; synchron(ous) ( def. ) + -ic ( def. ) + -ity ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is one of those moments of universal synchronicity that changed the course of many lives, not just Auf der Maur’s.

From Salon • Mar. 24, 2026

At its L.A. highlight exhibition, Irsay’s collection held an air of synchronicity.

From Los Angeles Times • Mar. 2, 2026

That synchronicity was too frequent to be coincidental.

From Science Daily • Oct. 22, 2025

Whales dive in a harbor near Sydney, their tails poised above the water in lovely synchronicity.

From Seattle Times • Dec. 4, 2023

My father smiled at my mother as they pulled the sheets back and smoothed them down in perfect synchronicity.

From "Insurgent" by Veronica Roth