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 Message Thank you! Oops! Related Content Combine Your Policies and Save Some things just make perfect sense in pairs. Making Sense Of A Home Warranty Understanding the value of a home warranty. Long-Term-Care Protection Strategies The chances of needing long-term care, its cost, and strategies for covering that cost.