Definition of irrupt verb from the Oxford Advanced American Dictionary

 

irrupt

 verb
verb
NAmE//ɪˈrʌpt//
 
[intransitive]+ adv./prep.(formal)Verb Forms present simple I / you / we / they irrupt
 
he / she / it irrupts
 
past simple irrupted
 
-ing form irrupting
 
 
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to enter or appear somewhere suddenly and with a lot of force Violence once again irrupted into their peaceful lives.
NAmE//ɪˈrʌpʃn//
 
noun [uncountable, countable]
See the Oxford Advanced Learner's Dictionary entry: irrupt