"Alod" is a word used in medieval times to describe a type of land ownership. Synonyms for this term include "allodial," "freehold," and "sovereign." All of these terms are used to describe land ownership that is free from any obligations or restrictions to a lord or other authority. Other related terms include "fee simple" and "fee tail," which refer to similar forms of absolute land ownership. While these terms may not be commonly used in modern times, understanding their meaning and history can help to shed light on the development of land ownership and property rights over time.