The range of notes of a musical instrument or voice.
A pair of compasses (a device used to draw an arc or circle).
A magnetic or electronic device used to determine the cardinal directions (usually magnetic or true north).
Moderate bounds, limits of truth; moderation; due limits; used with within.
To surround; to encircle; to environ; to stretch round.
To go about or round entirely; to traverse.
A sustained chord or tone generated by a synthesizer, often employed for background harmony or atmosphere.