In the jurisprudence of the canon law of the Catholic Church, a dispensation is the exemption from the immediate obligation of law in certain cases. Wikipedia

The suspension, by competent authority, of general rules of law in particular cases in the Catholic Church Wikipedia Disambiguation

The relaxation of a law in a particular case; permission to do something forbidden, or to omit doing something enjoined; specifically, in the Roman Catholic Church, exemption from some ecclesiastical law or obligation to God which a man has incurred of his own free will (oaths, vows, etc.). Wiktionary

Relaxation of a law in a particular case. Wiktionary (translation)