American English

Definition of master verb from the Oxford Advanced American Dictionary

     

    master

     verb
    verb
    NAmE//ˈmæstər//
     
    Verb Forms present simple I / you / we / they master
     
    he / she / it masters
     
    past simple mastered
     
    -ing form mastering
     
     
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    learn/understand
  1. 1master something to learn or understand something completely to master new skills/techniques French was a language he had never mastered.
  2. control
  3. 2master something to manage to control an emotion She struggled hard to master her temper.
  4. 3master something/somebody to gain control of an animal or a person
See the Oxford Advanced Learner's Dictionary entry: master