Definition of irrupt verb from the Oxford Advanced Learner's Dictionary

 

irrupt

 verb
verb
BrE BrE//ɪˈrʌpt//
 
; NAmE NAmE//ɪˈrʌpt//
 
Verb Forms present simple I / you / we / they irrupt
BrE BrE//ɪˈrʌpt//
 
; NAmE NAmE//ɪˈrʌpt//
 
he / she / it irrupts
BrE BrE//ɪˈrʌpts//
 
; NAmE NAmE//ɪˈrʌpts//
 
past simple irrupted
BrE BrE//ɪˈrʌptɪd//
 
; NAmE NAmE//ɪˈrʌptɪd//
 
past participle irrupted
BrE BrE//ɪˈrʌptɪd//
 
; NAmE NAmE//ɪˈrʌptɪd//
 
-ing form irrupting
BrE BrE//ɪˈrʌptɪŋ//
 
; NAmE NAmE//ɪˈrʌptɪŋ//
 
 
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[intransitive] + adv./prep. (formal) to enter or appear somewhere suddenly and with a lot of force Violence once again irrupted into their peaceful lives. Word Origin mid 19th cent.: (earlier (mid 16th cent.) as irruption) from Latin irrupt- ‘broken into’, from the verb irrumpere, from in- ‘into’ + rumpere ‘break’.
See the Oxford Advanced American Dictionary entry: irrupt