1. the process or material used to make something resistant to bullets or gunfire

1. to make something resistant to bullets or gunfire by adding protective material or reinforcement
2. to make something secure against failure, criticism, or attack; to strengthen or safeguard
Usage: figurative

Examples

• The company invested in bulletproofing the windows of their executive offices.
• They are bulletproofing the vehicle with steel plates and reinforced glass.
• The new policy aims at bulletproofing the system against future attacks.
• Bulletproofing a car can significantly increase its weight and cost.
• The lawyer suggested bulletproofing the contract with additional legal clauses.
• Modern bulletproofing materials are lighter and more effective than older versions.