1safe·guard 
/ˈseɪfˌgɑɚd/ noun
plural safe·guards /ˈseɪfˌgɑɚd/ noun [count] formal : something that provides protection against possible loss, damage, etc.
▪ The new law has safeguards to protect the rights of citizens. ▪ There are many safeguards built into the system to prevent fraud. ▪ Practicing good nutrition can be an important safeguard [=defense] against cancer.
▪ The new law has safeguards to protect the rights of citizens. ▪ There are many safeguards built into the system to prevent fraud. ▪ Practicing good nutrition can be an important safeguard [=defense] against cancer.
