/ Dictionary / Index N number five iron: Meaning and Definition of Find definitions for: num'ber five' i"ron Pronunciation: [key] — Golf. Golf. mashie. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. number eight iron number four iron Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language