/ Dictionary / Index M martlet: Meaning and Definition of Find definitions for: mart•let Pronunciation: (märt'lit), [key] — n. a house martin. a representation of a swallow close and without legs, used esp. as the cadency mark of a fourth son. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Martinů martnet 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