Written promise of coverage given to an individual, family, or group of covered individuals, where a beneficiary is entitled to receive a defined set of health care benefits in exchange for a defined consideration, such as a premium.

Insurance coverage sold on an individual or group basis to help fill the "gaps" in the protections granted by the federal Medicare program. This is strictly supplemental coverage and cannot duplicate any benefits provided by Medicare. It is structured to pay part or all of Medicare's deductibles and co-payments. It may also cover some services and expenses not covered by Medicare. Also known as Medigap" insurance.

A contract between an insurer and a policyholder in which the insurer guarantees payment of a death benefit to named beneficiaries when the insured dies. The insurance company promises a death benefit in exchange for premiums paid by the policyholder.

Personal lines, as the term suggests, includes coverages for individuals- vehicles and household insurance. Commercial lines, that accounts for almost half of U.S. property/casualty insurance premium, includes the many kinds of insurance products designed for businesses.