Definitions
1.nounA magnetic or electronic device used to determine the cardinal directions (usually magnetic or true north).
2.nounA pair of compasses (a device used to draw an arc or circle).
3.nounThe range of notes of a musical instrument or voice.
4.nounA space within limits; an area.
5.nounAn enclosing limit; a boundary, a circumference."within the compass of an encircling wall"
6.nounModerate bounds, limits of truth; moderation; due limits; used with within.
7.nounScope.
8.nounA passing round; circuit; circuitous course.