Scrabble?! TREMOR

Definitions of TREMOR in various dictionaries:

noun - an involuntary vibration (as if from illness or fear)

noun - a small earthquake

noun - shaking or trembling (usually resulting from weakness or stress or disease)

verb - shake with seismic vibrations

A shaking or vibrating movement, as of the earth.

A trembling or quivering effect: a tremor of aspen leaves.

An involuntary trembling or quivering, as from nervous agitation or weakness.

A nervous quiver or thrill: felt a tremor of joy.

A state or feeling of nervous agitation or tension.

A tremulous sound; a quaver.

noun - a shaking movement