/ Dictionary / Index S Seth: Meaning and Definition of Find definitions for: Seth Pronunciation: (seth), [key] — n. the third son of Adam. Gen. 4:25 a male given name: from a Hebrew word meaning “substitute.” Seth Pronunciation: (sāt), [key] — n. Egyptian Relig. Set. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seth (Thesaurus) set function SETI Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language