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 Contents Combine Your Policies and Save Some things just make perfect sense in pairs. Protecting Your Business from the Loss of a Key Person Business owners may be able to protect themselves from the financial consequences of losing a key employee. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.