What is the meaning of infuse?

verb

• Teach and impress by frequent repetitions or admonitions.
  • usage: "inculcate values into the young generation"
  • synonyms: inculcate, instill
• Fill, as with a certain quality.
  • usage: "The heavy traffic tinctures the air with carbon monoxide"
  • synonyms: impregnate, instill, tincture
• Undergo the process of infusion.
  • usage: "the mint tea is infusing"
• Let sit in a liquid to extract a flavor or to cleanse.
  • usage: "steep the blossoms in oil"; "steep the fruit in alcohol"
  • synonyms: steep
• Introduce into the body through a vein, for therapeutic purposes.
  • usage: "Some physiologists infuses sugar solutions into the veins of animals"