1. an action or device designed to counteract or neutralize a threat, attack, or problem
2. a military or defensive measure taken in response to an enemy action or threat
Usage: often used in military or security contexts

Examples

• The government implemented new countermeasures to prevent cybercrime.
• Installing security cameras is an effective countermeasure against theft.
• The company developed countermeasures to address the competitor's new product.
• Military forces deployed countermeasures to defend against the incoming attack.
• Wearing a seatbelt is an important countermeasure for vehicle safety.
• The school introduced countermeasures to reduce bullying in the hallways.