From Longman Dictionary of Contemporary Englishat your commandat your commandUSE somethingif you have a particular skill at your command, you are able to use that skill well and easily
a pianist with the keys at his command βcommandExamples from the Corpusat your commandβ’ Loyal, bondedsiliconbrains, hired for cheap and at your command, even if you were only 13.β’ Try to hire a carpenter with years of experience at his command.β’ A 12-hour alarm sounds off at your command.β’ Owen played with all the strength and passionat his command.β’ How can students cope with the limitedresourcesat their command?β’ In short, they have an explanatoryrhetoricat their command.β’ So he would protect himself, with all the weaponsat his command.β’ An old soldier, he had a few choice words at his command.
