What is the meaning of southward?

noun

• The cardinal compass point that is at 180 degrees.
  • synonyms: south, due south, S

adjective

• Moving toward the south.
  • usage: "a southbound train"
  • synonyms: southbound

adverb

• Toward the south.
  • usage: "the ship turned southerly"
  • synonyms: southerly, southwards