/ Dictionary / Index P passenger pigeon: Meaning and Definition of Find definitions for: pas'senger pi"geon Pronunciation: [key] an extinct pigeon, Ectopistes migratorius, once found in great numbers in North America, noted for its sustained migratory flights. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. passenger mile passe-partout Related Content Daily Word Quiz: tranquil Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language