The apparent diurnal revolution of the sun round the earth (Psalm 19:6), and the changes of the wind (Ecclesiastes 1:6). In Job 22:14, "in the circuit of heaven" (R.V. marg., "on the vault of heaven") means the "arch of heaven," which seems to be bent over our heads.

Noah Webster's New International Dictionary of the English Language

1. (n.) The act of moving or revolving around, or as in a circle or orbit; a revolution; as, the periodical circuit of the earth round the sun.

2. (n.) The circumference of, or distance round, any space; the measure of a line round an area.

3. (n.) That which encircles anything, as a ring or crown.

4. (n.) The space enclosed within a circle, or within limits.

5. (n.) A regular or appointed journeying from place to place in the exercise of one's calling, as of a judge, or a preacher.

6. (n.) A certain division of a state or country, established by law for a judge or judges to visit, for the administration of justice.

7. (n.) A district in which an itinerant preacher labors.

8. (n.) Circumlocution.

9. (v. i.) To move in a circle; to go round; to circulate.

10. (v. t.) To travel around.