A curse (also called execration) is any expressed wish that some form of adversity or misfortune will befall or attach to some other entity—one or more persons, a place, or an object. In particular, "curse" may refer to a wish that harm or hurt will be inflicted by any supernatural powers, such as a spell, a prayer, an imprecation, an execration, magic, witchcraft,  God, a natural force, or a spirit. In many belief systems, the curse itself (or accompanying ritual) is considered to have some causative force in the result.