This is the 12126th most frequent Spanish word.
intentes
"Intentes" means "you try" (subjunctive mood, second person singular).
Here, "intentes" is used as a second-person singular negative imperative in a subjunctive mood.
No intentes abrir la puerta sin la llave.
Do not try to open the door without the key.
In this sentence, "intentes" represents a second-person singular subjunctive present to express possibility or hypothesis.
Quizás intentes reparar el coche tú mismo.
Maybe you try to repair the car yourself.
In this context, "intentes" is used in the subjunctive mood to indicate a necessity or recommendation made to the second person singular.