1) Down 2) South 3) Southbound 4) Southwards 1) Moving toward the south 2) South 3) Southbound 4) Toward the south 
• (n.) The southern regions or countries; the south. • (a.) Toward the south. • (adv.) Alt. of Southwards
South'ward (?; colloquial ...), South'wards (?; colloquial ...) , adverb Toward the south, or toward a point nearer the south than the east or west point; as, to go southward . South'ward adjective Toward the south. South'ward noun The southern regions or countries; the south. Sir W. Raleigh. 
[adv] - toward the south
southwards adverb toward the south