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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. )

Explanation

Ever step outside just as the sun comes out? Or pass by a street lamp at night, and it turns on at that moment, seemingly just for you? That's synchronicity, when things happen together, as if perfectly timed. If you're planning to lip-sync your next concert, you'll want to work on your synchronicity with your soundman. And speaking of music, if you're a rock-and-roll nerd, you're no doubt thinking of "Synchronicity," the megahit album by The Police, released in 1983. The term synchronicity was coined in the 1950s by the Swiss psychologist Carl Jung, to describe uncanny coincidences that seem to be meaningful. The Greek roots are syn-, "together," and khronos, "time."

Keep Reading on Vocabulary.com

Vocabulary lists containing synchronicity

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

"So little can make such a big difference in conduction velocity and the synchronicity of the circuit."

From Science Daily • Jun. 5, 2024

Amid a bloom of fireworks over Jeddah’s coast, dozens of drones buzzed in synchronicity to spell out the kingdom’s goal: “Saudi Arabia. Home of Sporting Events.”

From Los Angeles Times • May 2, 2024

They’re not working in synchronicity nor are they forming a singular tableau, but somehow these four performers create a moment of visual harmony, small and lovely, singularly breathtaking.

From Seattle Times • Feb. 2, 2024

Based on the synchronicity and the force of the kicks, he was pretty sure they came from the twins.

From "The Vanderbeekers of 141st Street" by Karina Yan Glaser