undergo - definition and synonyms

verb [transitive] 

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present tense
present participleundergoing
past tenseunderwent
past participleundergone
  1. 1
    to experience something, especially something that is unpleasant but necessary
    undergo surgery/treatment/an operation etc:

    She underwent emergency surgery for suspected appendicitis.

  2. 2
    to experience a process of change

    The bridge has undergone a series of modifications and will be re-opened in two weeks.