What is the meaning of downward?

adjective

• Extending or moving from a higher to a lower place.
  • usage: "the down staircase"; "the downward course of the stream"
  • synonyms: down
• On or toward a surface regarded as a base.
  • usage: "he lay face downward"; "the downward pull of gravity"

adverb

• Spatially or metaphorically from a higher to a lower level or position.
  • usage: "don't fall down"; "rode the lift up and skied down"; "prices plunged downward"
  • synonyms: down, downwards, downwardly