American English

Definition of command noun from the Oxford Advanced American Dictionary

      

    command

     noun
    noun
    NAmE//kəˈmænd//
     
     
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    control
  1. 1 [uncountable] control and authority over a situation or a group of people He has 1,200 men under his command. He has command of 1,200 men. The police arrived and took command of the situation. For the first time in years, she felt in command of her life. He looked relaxed and totally in command of himself. Who is in command here? There were many disagreements over the command of the peacekeeping forces. the chain of command see also second in command
  2. order
  3. 2[countable] an order given to a person or an animal Begin when I give the command. You must obey the captain's commands.
  4. for computer
  5. 3[countable] an instruction given to a computer What is the startup command for the program?
  6. in army
  7. 4 Command [countable] a part of an army, air force, etc. that is organized and controlled separately; a group of officers who give orders Strategic Air Command
  8. knowledge
  9. 5[uncountable, singular] command (of something) your knowledge of something; your ability to do or use something, especially a language Applicants will be expected to have (a) good command of English.
  10. Idioms
    at your command
     
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    if you have a skill or an amount of something at your command, you are able to use it well and completely With all the words at my command, I could not express how I felt.
    be at somebody's command (formal)
     
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    to be ready to obey someone I'm at your command—what would you like me to do?
    your wish is my command (humorous)
     
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    used to say that you are ready to do whatever someone asks you to do
See the Oxford Advanced Learner's Dictionary entry: command