vibrate

To move back and forth or to and fro, especially rhythmically and rapidly: synonym: swing.

To progress in a given direction while moving back and forth rapidly.

To be in a state of great activity, excitement, or agitation.

To produce a sound; resonate.

To fluctuate or waver, as between states or in making choices.

To cause to move back and forth rapidly.

To produce (sound) by vibration.

A setting on a cell phone that causes the phone to shake rapidly without producing a ringtone when a call or text message is received.

To swing; oscillate; move one way and the other; play to and fro, as the pendulum.