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English definition of “command”

command

noun     /kəˈmɑːnd/
CONTROL [U] control over someone or something and responsibility for them: The soldiers were under the command of a tough sergeant-major. Jones was in command (= the leader).Instructions and orders
ORDER [C] B2 an order to do somethingInstructions and orders
KNOWLEDGE [no plural] B2 knowledge of a subject, especially a language: She had a good command of French.Knowledge and awareness
be at sb's command to be ready to obey someone's ordersObedient and compliantObeying and breaking the law
COMPUTER [C] an instruction to a computerComputer programming and software
(Definition of command noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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