/ Dictionary / Index M mesne lord: Meaning and Definition of Find definitions for: mesne' lord' Pronunciation: [key] (in old English law) an intermediate feudal lord; the tenant of a chief lord and a lord to his own tenants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mesne meso- Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language