This is the 4666th most frequent Catalan word.
protegida
"Protected."
The word 'protegida' refers to the adjective form meaning 'protected', modifying the noun 'reserva'.
La reserva natural protegida acull moltes espècies rares.
The protected natural reserve hosts many rare species.
Here, 'protegida' describes the condition of 'carta', indicating it is safeguarded against a specific risk.
La carta està protegida contra la manipulació.
The letter is protected against tampering.
In this case, 'protegida' as an adjective emphasizes the security status of 'informació'.