IPA: /ˈsɪŋkrəni/
KK: /sɪŋˈkrɑni/
The state of happening at the same time or in a coordinated way.
The dancers moved in perfect synchrony during the performance.
Synchrony → It is formed from "syn-" (meaning together) and "chronos" (meaning time). The word describes events occurring at the same time or in a coordinated manner.
Think of things happening 'together' ('syn-') in 'time' ('chronos') — that's what synchrony means.