The phrase "a verbal command" is correct and usable in written English.
It can be used when referring to an instruction or directive that is spoken rather than written.
Example: "The robot responded to a verbal command to start the cleaning process."
Alternatives: "an oral command" or "a spoken command".
The elephant was given a verbal command, which, if it were disobeyed, was followed by the trainer calling for the electrical treatment, when several hundred volts were passed through the beasts causing them to raise their feet in anguish.
"Police" lets you speak a verbal command that performs a series of actions, including messaging a friend, turning down the phone's brightness and pausing the sounds on your phone.
The updated iOS brings a number of enhancements, including the ability for Siri to work with third-party apps, so you can do things like request an Uber ride by voice, make a Venmo payment, pause your working with a verbal command, and much more.
After two more shots rang out, the school secretary issued a verbal command over the loudspeaker to implement lockdown procedure.
The handler, who remained behind the screen, gave a verbal command to the dog to start the search.
Upon a verbal command the participant sprinted around a cone 15-m away and returned to the firing range.
This distinction was made in order to have a more fine-grained understanding of teachers' own priorities, as we understood that the importance of having a good verbal command of a language versus reading/writing in such a language might be different for teachers.
These are already present at Gatwick, New Delhi and Frankfurt, but in the future shopping walls could reach a whole new level, believes Skyscanner, with interactive software allowing passengers "to order food or goods with a wave of [their] hand or by a simple verbal command".
Leading up to Vito and Montie's auditions, Ms. Corelli used a clicker, verbal commands and hand signals to teach the cats the role.
He began each training exercise by calling out Steffi's name, and then accompanied his verbal command with a specific hand signal.
As the details of her lawsuit reveal, "Plaintiff is a state prisoner, controlled by verbal command and order".
