The maximum possible estate or right of ownership of real property, continuing forever that a person can own.
The greatest possible estate in land, wherein the owner has the right to use it, exclusively possess it, commit waste upon it, dispose of it by deed or will, and take its fruits. A fee simple represents absolute ownership of land, and therefore the owner may do whatever he or she chooses with the land. If an owner of a fee simple dies intestate, the land will descend to the heirs.
The term fee used independently is an adequate designation of this type of estate in land. The term simple is added to distinguish clearly this estate from other interests in real property.
A fee simple (or fee simple absolute) is an estate in land. Ownership cannot be defeated by the previous owner or the previous owner's heirs; however, it is not free from encumbrances. Fee simple absolute is the greatest interest in a parcel of land that one can possibly own. Sometimes it is designated simply as "fee." It is the most common way real estate is owned in common law countries and is ordinarily the most complete ownership interest that can be had in real property, short of absolute title.
Fee simple ownership represents absolute ownership of real property and is limited by the four basic government powers of taxation, eminent domain, police power, and escheat, and could also be limited by certain encumbrances or a condition in the deed.
You do not really need a memory technique for this as long as you understand what the word "absolute" means. It means complete and unrestricted.