1. to make something resistant to bullets or gunfire; to protect with bulletproof material
2. to make something secure against attack, criticism, or failure
Usage: figurative

1. plural of bulletproof; protective garments or materials designed to resist bullets

Examples

• The government decided to bulletproof the presidential limousine.
• Engineers bulletproofed the windows of the bank vault.
• She tried to bulletproof her argument by gathering extensive evidence.
• The new security measures bulletproof the system against cyber attacks.
• Police officers wear bulletproofs as part of their standard equipment.
• The company bulletproofed its contracts to prevent legal disputes.