Resistenza e vigore fisico o psichico: v. delle membra, della mente.
Resistance and physical or psychic vigor: see of the limbs, of the mind.
Efficacia in rapporto a determinati fini (la v. di un argomento ; impugnare la v. di una sentenza ), oppure in rapporto a determinati limiti o scadenze (il biglietto ha la v. di tre giorni ).
Effectiveness in relation to certain purposes (the v. of an argument; to challenge the v. of a judgment), or in relation to certain limits or deadlines (the ticket has the v. of three days).