A document in which the will maker specifies who is to receive his or her property at death and names an executor. You can also use your will to name a guardian for your young children. To be valid, awill must be signed by the person who made it (called the testator), dated, and witnessed by two people. In some states the witnesses must be disinterested. A will totally in the handwriting of the testator, signed and dated (a "holographic will") but without witnesses, is valid in about half of the states.