Negligence is a tort involving failure to use a degree of care considered reasonable under a given set of circumstances and can lead to legal liability of the tortfeasor.
Acts of either omission or commission, or both, may constitute negligence. The four elements of negligence are a duty owed to a plaintiff, a breach of that duty by the defendant, proximate cause, and an injury or damage suffered by the plaintiff. Liability policies are designed to cover claims of negligence.