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1. Enter uninvited
   "She irrupted into our sitting room";
   - intrude
    
2. Erupt or intensify suddenly
   "The crowd irrupted into a burst of patriotism";
   - erupt, flare up, flare, break open, burst out
    
3. Increase rapidly and in an uncontrolled manner
   "The island's rodent population irrupted";
   - explode

Sounds like: erup

Derived forms: irrupting, irrupted, irrupts

Type of: come in, deepen, enter, get in, get into, go in, go into, increase, intensify, move into