command · noun /kəˈmænd/Full view
command (ORDER)
B2 C an order to do something, especially one given by a soldier
Dictionary examples:

He hated being in the army because he had to obey commands.

When I give the command, fire!

Learner example:

Under the red lights of his command room, the first question that the captain wanted to a[sk] was to know if the boat was safe. (First Certificate in English; B2; French)

command (KNOWLEDGE)
B2 U knowledge of a subject, especially a language
Dictionary example:

She had a good command of Italian.

Learner example:

Besides, I have a good command of French and I speak English fluently, which might be useful during the voyage around the world. (First Certificate in English; B2; Russian)

command (COMPUTER)
C1 C an instruction to a computer
Dictionary example:

It's worth learning the shortcuts for some of these commands.

Learner example:

Program list. 1. System commands MAIN console programs. 2. Review of LINUX Sys. console 3. Server commands. 4. ADD ONs for LINUX OS. 5. LINUX INTERFACE. 6. USER PROFILE. (Certificate in Advanced English; C1; Russian)

command (CONTROL)
C2 U control over someone or something and responsibility for them
Dictionary examples:

The soldiers were under the command of a tough sergeant-major.

Jones was in command.

Learner example:

Suddenly, [there] comes an insurrection of armed militia with generals in command. (Certificate of Proficiency in English; C2; French)

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