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? Address Thank you! Oops! Related Contents Surprises Making the most of surprises is a great reason to work with us. How Insurance Deductibles Work Knowing how insurance deductibles work can help you save money and give you peace of mind. Protecting Those Who Matter Most The importance of life insurance, how it works, and how much coverage you need.