Will (law)
A will or testament is a legal declaration by which a person, the testator, names one or more persons to manage his/her estate and provides for the transfer of his property at death. For the devolution of property not disposed of by will, see inheritance and intestacy.
In the strictest sense, a "will" has historically been limited to real property while "testament" applies only to dispositions of personal property (thus giving rise to the popular title of the document as "Last Will and Testament"), though this distinction is seldom observed today. A will may also create a testamentary trust that is effective only after the death of the testator.
Read more about Will (law): Requirements For Creation, In History, Freedom of Disposition, Terminology