/ Dictionary / Index M man-at-arms: Meaning and Definition of Find definitions for: man-at-arms Pronunciation: (man'ut ärmz'), [key] — pl. men-at-arms. a soldier. a heavily armed soldier on horseback, esp. in medieval times. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: man-at-arms (Thesaurus) Manat manatee Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language