Definition of scrub verb from the Oxford Advanced American Dictionary

     

    scrub

     verb
    verb
    NAmE//skrʌb//
     
    Verb Forms present simple I / you / we / they scrub
     
    he / she / it scrubs
     
    past simple scrubbed
     
    -ing form scrubbing
     
     
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  1. 1[transitive, intransitive] to clean something by rubbing it hard, perhaps with a brush and usually with soap and water scrub something/yourself I found him in the kitchen, scrubbing the floor. He stepped into the shower and scrubbed himself all over. scrub something/yourself down She scrubbed the counters down with bleach. scrub (at something) The woman scrubbed at her face with a tissue. scrub something/yourself + adj. Scrub the vegetables clean.
  2. 2[transitive] scrub something (informal) to cancel something that you have arranged to do
  3. Phrasal Verbsscrub somethingoffscrub somethingoutscrub up
See the Oxford Advanced Learner's Dictionary entry: scrub