A tort is a legal wrong arising from a duty fixed by law. This harmful action is addressable from a legal remedy.

The breach of duty causing an injury to property or persons, is set right by the legal action for the damages.

The liability for tort involves a civil or a private injury or wrong, and not the duty owed under a contract, which is usually owed to people and not a specific individual.

When you are being sued for a car accident resulting in an injury, then you are dealing with tort.