He was arrested for producing counterfeit money.

The police arrested a counterfeiter who was making fake money.

I always keep the counterfoil of my cheques for record keeping.

The military implemented a counterinsurgency strategy to combat the guerrilla activities.

Counterintelligence is the process of gathering information about an enemy or potential enemy's intelligence, activities, and capabilities.

I applied a counterirritant to my sore muscles to relieve the pain.

The counterman served the customers from behind the counter.

The president countermanded the order.

The soldiers executed a countermarch to retreat from the enemy.

We need to come up with a countermeasure to solve this problem.