/ Dictionary / Index T testator: Meaning and Definition of Find definitions for: tes•ta•tor Pronunciation: (tes'tā-tur, te-stā'tur), [key] — n. Law. a person who makes a will. a person who has died leaving a valid will. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: testator (Thesaurus) testate testatrix Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language