noun an involuntary shaking or quivering.
2. tremble ·vi to quaver or shake, as sound; to be tremulous; as the voice trembles.
3. tremble ·vi to totter; to shake;
said of a thing.
4. tremble ·vi to shake involuntarily, as with fear, cold, or weakness; to quake; to quiver; to shiver; to shudder;
said of a person or an animal.