What is the meaning of potency?

noun

• The power or right to give orders or make decisions.
  • usage: "he has the authority to issue warrants"; "deputies are given authorization to make arrests"; "a place of potency in the state"
  • synonyms: authority, authorization, authorisation, dominance, say-so
• Capacity to produce strong physiological or chemical effects.
  • usage: "the toxin's potency"; "the strength of the drinks"
  • synonyms: effectiveness, strength
• The inherent capacity for coming into being.
  • synonyms: potential, potentiality
• The state of being potent; a male's capacity to have sexual intercourse.
  • synonyms: potence