1. (p. pr. & vb. n.) of South.

2. (n.) Tendency or progress southward; as, the southing of the sun.

3. (n.) The time at which the moon, or other heavenly body, passes the meridian of a place.

4. (n.) Distance of any heavenly body south of the equator; south declination; south latitude.

5. (n.) Distance southward from any point departure or of reckoning, measured on a meridian; -- opposed to northing.