p. pr. & vb. n. - of South
n. - Tendency or progress southward; as, the southing of the sun.
n. - The time at which the moon, or other heavenly body, passes the meridian of a place.
n. - Distance of any heavenly body south of the equator; south declination; south latitude.
n. - Distance southward from any point departure or of reckoning, measured on a meridian; -- opposed to northing.