A Compass

1. A magnetic or electronic device used to determine the cardinal directions (usually magnetic or true north).
2. A pair of compasses (a device used to draw an arc or circle).
3. (music) The range of notes of a musical instrument or voice.
4. (obsolete) A space within limits; an area.
5. (obsolete) An enclosing limit; a boundary, a circumference.
6. Moderate bounds, limits of truth; moderation; due limits; used with within.
7. (archaic) scope.
8. (obsolete) A passing round; circuit; circuitous course.

Synonyms

• (magnetic direction finder): magnetic compass
• (device used to draw circular curves): pair of compasses