To make void or of no effect; to nullify; to abolish; to do away with; -- used appropriately of laws, decrees, edicts, decisions of courts, or other established rules, permanent usages, and the like, which are made void by component authority.
annul in Afrikaans is kanselleer
annul in Dutch is ontbinden, annuleren, afgelasten
annul in French is annulez, annulons, annulent
annul in Italian is annullare
annul in Latin is aboleo, casso, abrogo