English

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

  

undergo

 verb
verb
BrE BrE//ˌʌndəˈɡəʊ//
 
; NAmE NAmE//ˌʌndərˈɡoʊ//
 
Verb Forms present simple I / you / we / they undergo
BrE BrE//ˌʌndəˈɡəʊ//
 
; NAmE NAmE//ˌʌndərˈɡoʊ//
 
he / she / it undergoes
BrE BrE//ˌʌndəˈɡəʊz//
 
; NAmE NAmE//ˌʌndərˈɡoʊz//
 
past simple underwent
BrE BrE//ˌʌndəˈwent//
 
; NAmE NAmE//ˌʌndərˈwent//
 
past participle undergone
BrE BrE//ˌʌndəˈɡɒn//
 
; NAmE NAmE//ˌʌndərˈɡɔːn//
 
, NAmE//ˌʌndərˈɡɑːn//
 
-ing form undergoing
BrE BrE//ˌʌndəˈɡəʊɪŋ//
 
; NAmE NAmE//ˌʌndərˈɡoʊɪŋ//
 
Operations
 
jump to other results
undergo something to experience something, especially a change or something unpleasant to undergo tests/trials/repairs My mother underwent major surgery last year. Some children undergo a complete transformation when they become teenagers. The drug is currently undergoing trials in America. See related entries: Operations Word Origin Old English undergān ‘undermine’ (see under-, go).
See the Oxford Advanced American Dictionary entry: undergo