wake upverb/ˌweɪk ˈʌp/

• 1

  To stop sleeping; to awake.

  • I made a speaking trumpet of my hands and commenced to whoop “Ahoy!” and “Hello!” at the top of my lungs. […] The Colonel woke up, and, after asking what in brimstone was the matter, opened his mouth and roared “Hi!” and “Hello!” like the bull of Bashan.
  • "Woke up, fell out of bed, dragged a comb across my head"
• 2

  To awaken somebody.

  • Wake your brother up; it's time for school.
  • It had been his intention to go to Wimbledon, but as he himself said: “Why be blooming well frizzled when you can hear all the results over the wireless.[…]You stand by, Janet, and wake me up if they do any of that running commentary stuff.”
• 3

  To become more aware of a real-life situation; to concentrate on the matter in hand.

  • Some businesses were slow to wake up to the importance of the Internet.
  • That's the third time you've made the same mistake. Wake up!