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English definition of “command”

command

noun [S or U] (KNOWLEDGE)    /kəˈmɑːnd/ US  /-ˈmænd/
B2 a great knowledge of a subject and an ability to use that knowledge: She has an impressive command of the English language.Skill, talent and ability
(Definition of command noun (KNOWLEDGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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