MAR—spoil, ruin, disfigure. (Improve.)
MARCH—tramp, tread, walk, step, space.
MARGIN—edge, rim, border, brink, verge.
MARK, n.—sign, note, symptom, token, indication, trace, vestige, track, badge, brand.
MARK, v.—impress, print, stamp, engrave, note.
MARRIAGE—wedding, nuptials, matrimony.
MARTIAL—military, warlike, soldierlike.
MARVEL—wonderful, miracle, prodigy.
MARVELOUS—wondrous, wonderful, miraculous.
MASSIVE—bulky, heavy, weighty, ponderous, solid, substantial. (Flimsy.)