instruct

verb
UK /ɪnˈstrʌkt/
US /ɪnˈstrʌkt/

To tell someone what to do.

The teacher instructed the class to sit down.


OTHER MEANINGS

2. To teach someone a subject or skill.

She instructs students in mathematics.

3. To give someone information or official directions.

The doctor instructed him to rest for a week.

4. To give a lawyer or judge the facts of a case.

The client instructed her lawyer before the trial.