Cause of action – used in the Tort Law, this legal term defines the concrete legal reason for suing others, i.e. for entering a court claim. Usually the reason is harmed concrete financial and legal interests of the claimant. For example, burning your house down, done by your neighbor, is the wrongful act which causes damages to you and respectively rises the right to lodge a civil claim for compensation. a non-maintained road, which caused a crush of your car, leads to claim for compensation against the Authority which is liable per the Law to keep the road in proper condition.