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master

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verb [transitive] British English pronunciation: master /ˈmɑːstə(r)/ 
Word Forms
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present tense
I/you/we/theymaster
he/she/itmasters
present participlemastering
past tensemastered
past participlemastered
  1. 1
    to learn something thoroughly so that you know it or can do it very well

    She never managed to master the Greek language.

    master the art of (doing) something:

    Lewis has mastered the art of giving nothing away in interviews.

  2. 2
    to manage to control something such as an emotion

    It seemed that the senator was unable to master his feelings.

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