What is the meaning of turn up?

verb

• Appear or become visible; make a showing.
  • usage: "She turned up at the funeral"; "I hope the list key is going to surface again"
  • synonyms: come on, come out, surface, show up
• Bend or lay so that one part covers the other.
  • usage: "fold up the newspaper"; "turn up your collar"
  • synonyms: fold, fold up
• Discover the location of; determine the place of; find by searching or examining.
  • usage: "Can you locate your cousins in the Midwest"; "My search turned up nothing"
  • synonyms: locate
• Be shown or be found to be.
  • usage: "She proved to be right"; "The medicine turned out to save her life"; "She turned up HIV positive"
  • synonyms: prove, turn out
• Find by digging in the ground.
  • usage: "I dug up an old box in the garden"
  • synonyms: excavate, dig up