If a document is made valid (in the eyes of the law), such as by being signed or sealed, it is executed.
put to death as punishment; "claimed the body of the executed traitor"
means that you and two witnesses have signed and dated your Declaration. It will remain in effect for three years unless you cancel it, execute a new declaration, or are found to be incompetent at the time that the three years expire. When your Declaration is executed that means it is legally possible for your Declaration to be used as your instructions for mental health treatments when you can't make those decisions yourself.
The signing of all legal loan documents in escrow in the presence of an escrow officer who is also a notary to certify that all borrowers' signatures are correct and true.
A contract that has been fully performed.
"1) adj. to have been completed. (Example: "it is an executed contract") 2) v. to have completed or fully performed. (Example: "he executed all the promises made in the contract") 3) v. completed and formally signed a document, such as a deed, contract or lease. 4) v. to have been put to death for a crime pursuant to a death sentence. See also: execute "
Officially signed, as in the execution of a deed or other document, with the intention that the person signing shall be bound by the contents.