intransitive verb. To break or burst in.

intransitive verb. To increase rapidly in number, especially beyond the normal range.

To break or force through: generally used as a participial adjective: as, irrupted barriers.

To enter forcibly; rush in: as, the enemy irrupted into the town.

verb. To break into.

verb. To enter forcibly or uninvited.

verb. To rapidly increase or intensify.

verb. Misspelling of erupt.

verb. enter uninvited

verb. increase rapidly and in an uncontrolled manner

verb. erupt or intensify suddenly

"Can Brown and Darling keep their eye on the ball of a major banking crisis if one were to irrupt at a moment when opinion polls show things to be at nip and tuck stage?"

irruption  

irruptive  

deepen  increase  intensify  

admit  advance upon  arise  barge in  be admitted  

irrupted  irrupting  irrupts