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 If You're In An Accident Learn the best steps to take after you’ve been in an automobile accident with this useful, step-by-step video. Assess Life Insurance Needs How to help determine life insurance needs to provide for your family after you pass away. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.