safeguard
n. countable B2 Upper Intermediate US //ˈseɪfˌɡɑɹd// UK //sˈeɪfɡɑːd// safe·guard
n. a measure or action taken to protect something from harm or loss.
n. a protective measure or device intended to prevent damage, loss, or danger.
Wearing a helmet is a key safety safeguard.
The new law includes safeguards to protect consumer data from unauthorized access.
Robust institutional safeguards are essential to prevent the erosion of democratic norms and ensure accountability in public office.
From Middle English savegard, from Middle French sauvegarde, from Old French salve garde, sauve garde, reconstructed as safe + guard.