Command

What is Command ?

Command is (noun) 1. an order The general gave the command to attack. in command of in charge of 2. knowledge of a particular subject, especially a language She has a good command of French.(verb) 1. to order He commanded the troops to open fire on the rebels. 2. to be in charge of He commands a group of guerillas.

 

source: Easier English, Student Dictionary Upper Intermediate Level