What is the meaning of defy?

verb

• Resist or confront with resistance.
  • usage: "The politician defied public opinion"; "The new material withstands even the greatest wear and tear"; "The bridge held"
  • synonyms: withstand, hold, hold up
• Elude, especially in a baffling way.
  • usage: "This behavior defies explanation"
  • synonyms: resist, refuse
• Challenge.
  • usage: "I dare you"
  • synonyms: dare