irrupt irrupt /ɪ'rʌpt/

verb

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