Umbrella: Refers to a liability insurance policy that protects the assets and future income of the policyholder above and beyond the standard limits on their primary policies. It is distinguished from excess insurance in that excess coverage goes into effect only when all underlying policies are totally exhausted, while umbrella is able to "drop down" to fill coverage gaps in underlying policies. Therefore, an umbrella policy can become the primary policy "on the risk" in certain situations. The term "umbrella" refers to how the policy shields the insured's assets more broadly than primary coverage.