The moments when things happen or are scheduled to happen; how well something is coordinated with regard to when it occurs.
From 'time' (continuous existence) plus '-ing' (making it an action) plus '-s' (plural). Modern sense developed with mechanical and theatrical precision.
Timing became crucial when theater and film arrived—suddenly you couldn't just perform the same scene the same way; everything had to synchronize perfectly, making timing a technical art form.
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