/ Dictionary / Index T twelve patriarchs: Meaning and Definition of Find definitions for: twelve' pa'triarchs. Pronunciation: [key] See under(def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twelvemonth Twelver 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