at someone's command
Definition of at someone's command
: available for someone's use or needs They used every resource at their command. If you need anything, please ask me. I am at your command.
Word by Word Definitions
: some person : somebody
: to direct authoritatively : order
: to exercise a dominating influence over : have command of: such as
: to have at one's immediate disposal
: an order given
: a signal that actuates a device (as a control mechanism in a spacecraft or one step in a computer)
: the activation of a device by means of such a signal
: done on command or request
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