n. The state of being synchronous or simultaneous.
n. Coincidences that seem to be meaningfully related; supposedly the result of "universal forces".
The Century Dictionary and Cyclopedia
n. Synchronism.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the relation that exists when things occur at the same time
Word Usage
"Jung used the word synchronicity for ‘meaningful coincidence,’ which he said was a concept possible only because an observer and connected event are products of the same source."