What is the meaning of up?

verb

• Raise.
  • usage: "up the ante"

adjective

• Being or moving higher in position or greater in some value; being above a former position or level.
  • usage: "the anchor is up"; "the sun is up"; "he lay face up"; "he is up by a pawn"; "the market is up"; "the corn is up"
• Out of bed.
  • usage: "are they astir yet"; "up by seven each morning"
  • synonyms: astir
• Getting higher or more vigorous.
  • usage: "its an up market"; "an improving economy"
  • synonyms: improving
• Extending or moving toward a higher place.
  • usage: "the up staircase"; "a general upward movement of fish"
  • synonyms: upward
• Usually followed by `on' or `for'. ( in readiness)
  • usage: "he was up on his homework"; "had to be up for the game"
• Open.
  • usage: "the windows are up"
• Used of computers. ( operating properly)
  • usage: "how soon will the computers be up"
• Used up.
  • usage: "time is up"

adverb

• Spatially or metaphorically from a lower to a higher position.
  • usage: "look up"; "the music surged up"; "the fragments flew upwards"; "prices soared upwards"; "upwardly mobile"
  • synonyms: upwards, upward, upwardly
• To a higher intensity.
  • usage: "he turned up the volume"
• Nearer to the speaker.
  • usage: "he walked up and grabbed my lapels"
• To a more central or a more northerly place.
  • usage: "was transferred up to headquarters"; "up to Canada for a vacation"
• To a later time.
  • usage: "they moved the meeting date up"; "from childhood upward"
  • synonyms: upwards, upward