
Oscillation
Physical movement
Refers to something that physically moves side to side or up and down repetitively.

The oscillation of a swing set is soothing to some people.
Regular motion
The movement is not random but follows a predictable path and frequency.

The oscillation of a metronome helps musicians keep a steady tempo.
Compare with
FluctuatePulsateSwaySwingTrembleUndulationVibrationWobble
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