/ Dictionary / Index R reed pipe: Meaning and Definition of Find definitions for: reed' pipe" Pronunciation: [key] an organ pipe having a reed that is vibrated by air to produce the sound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reed organ reed stop Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language