What is the meaning of inject?

verb

• Give an injection to.
  • usage: "We injected the glucose into the patient's vein"
  • synonyms: shoot
• To introduce (a new aspect or element. )
  • usage: "He injected new life into the performance"
• Force or drive (a fluid or gas) into by piercing.
  • usage: "inject hydrogen into the balloon"
  • synonyms: shoot
• Take by injection.
  • usage: "inject heroin"
• Feed intravenously.
• To insert between other elements.
  • usage: "She interjected clever remarks"
  • synonyms: interject, come in, interpose, put in, throw in