/ Dictionary / Index P Pilgrim's Progress*: Meaning and Definition of Find definitions for: Pil'grim's Prog'ress Pronunciation: [key] an allegory (1678) by John Bunyan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pilgrim bottle pili Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language