Definition of rack verb from the Oxford Advanced American Dictionary

 

rack

 verb
verb
NAmE//ræk//
 
(wrack)[often passive]rack somebody/somethingVerb Forms present simple I / you / we / they rack
 
he / she / it racks
 
past simple racked
 
-ing form racking
 
 
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  • to make someone suffer great physical or mental pain to be racked with/by guilt Her face was racked with pain. Violent sobs racked her whole body.
  • Idioms
    rack your brain(s)
     
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    to think very hard or for a long time about something She racked her brains, trying to remember exactly what she had said.
    Phrasal Verbsrack up something
    See the Oxford Advanced Learner's Dictionary entry: rack