What is the meaning of waking up?

noun

• The act of waking.
  • usage: "it was an early awakening"; "it was the waking up he hated most"
  • synonyms: awakening, wakening

verb

• Cause to become awake or conscious.
  • usage: "He was roused by the drunken men in the street"; "Please wake me at 6 AM."
  • synonyms: awaken, wake, waken, rouse, wake up, arouse
• Stop sleeping.
  • usage: "She woke up to the sound of the alarm clock"
  • synonyms: wake up, awake, arouse, awaken, wake, come alive, waken