An insurance policy is a contract. You agree to pay a certain amount of money regularly, and in return, an insurance company agrees to cover you financially if something specific happens, like a car accident or a health issue.

As long as you keep making your payments, your policy is considered active. In the insurance world, this is called an 'in-force' policy. It's working and ready to protect you as promised.

The regular payments you make to keep your policy active are called premiums.

Think of it like a subscription service. As long as you pay your monthly fee, you can watch all the shows you want. With insurance, as long as you pay your premium, your coverage continues.

So what happens if you stop paying the premiums? After a grace period, the insurance company will cancel your contract. The policy is no longer in-force. This is called a lapse.

When a policy lapses, you lose your coverage. The insurance company is no longer obligated to pay for any claims. It's the direct opposite of an in-force policy.

Insurance agents work to sell policies and serve their clients. The collection of all the in-force policies an agent manages is known as their 'book of business.'

A healthy book of business is full of in-force policies. An agent's goal isn't just to sell new policies, but to make sure existing clients continue to pay their premiums and keep their coverage. This act of keeping clients is called retention.

Retention is the opposite of a lapse. High retention means an agent is successfully keeping their clients' policies in-force. Low retention means many policies are lapsing, and the agent's book of business is shrinking.

Understanding these core terms is the first step in seeing how the insurance industry measures success. It all comes down to maintaining active, in-force policies.