A more thorough explanation:

Definition: A testator is someone who has passed away and has left a legal document called a will. The will outlines how the testator's assets and property should be distributed after their death.

Example: John wrote a will before he passed away. In his will, he stated that his house should be given to his daughter, and his savings should be split equally between his two sons. John is the testator.

Explanation: The example illustrates the definition of a testator by showing how John, who has passed away, left a will that outlines how his assets should be distributed. The will is a legal document that is used to ensure that the testator's wishes are carried out after their death.