Marne /mɑɹn/ noun2 •A right tributary of the Seine, in eastern France, flowing 319 miles east and southeast of Paris through the departments of Haute-Marne, Marne, Aisne, Seine-et-Marne, Seine-Saint-Denis and Val-de-Marne. •A department of Grand Est, France. Capital: Châlons-en-Champagne (INSEE code 51).
