valide

In a sentence

• Ce billet est encore valide.

  This ticket is still valid.

  In this sentence, 'valide' is used as an adjective to indicate that the ticket has not expired and can still be used.

• Son passeport est valide jusqu'à la fin de l'année.

  His passport is valid until the end of the year.

  Here, 'valide' is employed to describe the state of the passport's validity duration.

• Cette argumentation est valide d'un point de vue logique.

  This argumentation is valid from a logical point of view.

  In this case, 'valide' refers to the acceptability or being logically sound of the argumentation.