South
Part of speech: noun
Definition: One of the four major compass points, specifically 180, directed toward the South Pole, and conventionally downwards on a map. The down or negative direction.
Part of speech: adverb
Definition: Toward the south; southward. Of wind, from the south.
Part of speech: adjective
Definition: Toward the south; southward. Of wind, from the south. Of or pertaining to the south; southern. Pertaining to the part of a corridor used by southbound traffic.
Southbound
Part of speech: adverb
Definition: Toward the south.
Part of speech: adjective
Definition: Which is (or will be) travelling south.