/ Dictionary / Index T Thyssen: Meaning and Definition of Find definitions for: Thys•sen Pronunciation: (tis'un), [key] 1873–1951, German industrialist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thyself THz Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language