/ Dictionary / Index I ironbound: Meaning and Definition of Find definitions for: i•ron•bound Pronunciation: (ī'urn-bound'), [key] — adj. bound with iron. rock-bound; rugged. hard; rigid; unyielding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. iron blue iron brick Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language