vibrate

/ˈvī-ˌbrāt/

Latin vibratus, past participle of vibrare to brandish, wave, rock

verb

  1. to swing or move to and fro

  2. to emit with or as if with a vibratory motion

  3. to mark or measure by oscillation

swing sway oscillate vibrate fluctuate waver undulate mean to move from one direction to its opposite. swing implies a movement of something attached at one end or one side. sway implies a slow swinging or teetering movement.