/ Dictionary / Index M Marconi mast: Meaning and Definition of Find definitions for: Marco'ni mast" Pronunciation: [key] an elaborately stayed mast. a mast for a radio antenna. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. marconigram Marconi rig Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language