The use of the term “administrative tort” in administrative law and its extension to the range of relations regulated by administrative law causes misunderstandings among civil law theorists and some representatives of administrative law science. In connection with the next administrative reform and the reform of administrative legislation, a new discussion arose about the legality of the use of the term “administrative tort” in the theory of administrative law and law enforcement practice. Accepting this scientific challenge, the Author delves into the essential content of the term “tort”, compares it with the concepts of obligation, duty, harm, liability, and others, and gives the Author's definition of “obligation”. The conclusions are based on the works of legal theorists, civil and administrative law, and developers of the science “administrative tortology”.