master

noun

  1. 1

    an original creation (i.e., an audio recording) from which copies can be made

  2. 2

    key that secures entrance everywhere

  3. 3

    presiding officer of a school

  4. 4

    an artist of consummate skill

    a master of the violin

    one of the old masters

  5. 5

    an authority qualified to teach apprentices

  6. 6

    directs the work of others

  7. 7

    someone who holds a master's degree from academic institution

  8. 8

    an officer who is licensed to command a merchant ship

  9. 9

    a person who has general authority over others

  10. 10

    a combatant who is able to defeat rivals

verb

  1. 1

    have a firm understanding or knowledge of; be on top of

    Do you control these data?

  2. 2

    be or become completely proficient or skilled in

    She mastered Japanese in less than two years

Synonyms

Also useful for “master”:Unscrambler