What is the meaning of irrupt?

verb

• Enter uninvited.
  • usage: "They intruded on our dinner party"; "She irrupted into our sitting room"
  • synonyms: intrude
• Erupt or intensify suddenly.
  • usage: "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
  • synonyms: erupt, flare up, flare, break open, burst out
• Increase rapidly and in an uncontrolled manner.
  • usage: "The population of India is exploding"; "The island's rodent population irrupted"
  • synonyms: explode