What does "tremble" mean?

Tremble: To totter; to shake; -- said of a thing. The Mount of Sinai, whose gray top Shall tremble. Milton.

Additional senses

  1. 2.To quaver or shake, as sound; to be tremulous; as the voice trembles.
  2. 3.An involuntary shaking or quivering. I am all of a tremble when I think of it. W. Black.

Sources