The state of being synchronous. / A temporal relationship between events. / The tabular arrangement of contemporary events etc. in history.

plural of synchronism

(intransitive) To occur at the same time or with coordinated timing. / (transitive) To cause (video and audio) to play in a coordinated way.

(uncountable) The state of being synchronous or simultaneous. / (Jungian psychology) Coincidences that seem to be meaningfully related; supposedly the result of "universal forces".

Occurring at a specific point in time. / (linguistics) Relating to the study of a language at only one point in its history.

At the same time, at the same frequency.

Having attained synchronization, together, coordinated, combined.

simple past tense and past participle of synchronize

The state or property of being synchronized. / (military) The arrangement of military actions in time, space, and purpose to produce maximum relative combat power at a decisive place and time.

In a synchronous manner; carried out with synchrony; in phase or at the same time.