Longman Dictionary of Contemporary English homepage

undergo

 verb
     
un‧der‧go past tense underwent past participle undergone [transitive not in passive]
if you undergo a change, an unpleasant experience etc, it happens to you or is done to youCOLLOCATIONS COLLOCATIONS
undergo a change/transformation undergo treatment/surgery/an operation undergo tests/trials undergo training
The country has undergone massive changes recently.
He has been released from prison to undergo medical treatment in the United States.
She has been undergoing tests since Monday.
Teachers should be expected to undergo mid-career training and development.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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