synchronize
SING-kruh-nizeverbMeaning to make things happen at the same time or at the same speed
Memory hook SYN-CHRON: SAME TIME, together. Three dancers kick their legs at exactly the same moment, on the very same beat: they synchronize their moves.
Before the race, the timekeepers synchronized their stopwatches.
In context The swimmers synchronized every move so perfectly that their legs rose from the water at the very same instant, like parts of a single machine.
Similar coordinate, match, time together, align
From Greek synchronos, “happening at the same time”: syn (together) + chronos (time).