What is the meaning of prevail?

verb

• Be larger in number, quantity, power, status or importance.
  • usage: "Money reigns supreme here"; "Hispanics predominate in this neighborhood"
  • synonyms: predominate, dominate, rule, reign
• Be valid, applicable, or true.
  • usage: "This theory still holds"
  • synonyms: hold, obtain
• Continue to exist.
  • usage: "These stories die hard"; "The legend of Elvis endures"
  • synonyms: persist, die hard, run, endure
• Prove superior.
  • usage: "The champion prevailed, though it was a hard fight"
  • synonyms: triumph
• Use persuasion successfully.
  • usage: "He prevailed upon her to visit his parents"