/ Dictionary / Index M M.A.Arch.: Meaning and Definition of Find definitions for: M.A.Arch. Pronunciation: [key] Master of Arts in Architecture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. maar Maariv* Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language