What is a Loss? Loss[los]noun1.A Loss is an injury or damage that is covered by an insurance Policy. Losses can be partial, like when wind damages part of a roof, or total, as when an automobile is “totaled” in a collision. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Coaches Coaches have helped you your whole life, in ways big and small. We’d like to be one of them. Did You Know This Fact About Unattended Cooking? Do you know unattended cooking is a leading cause of fatal home fires? Long-Term-Care Protection Strategies The chances of needing long-term care, its cost, and strategies for covering that cost.