<p><strong>Noun</strong></p><ul><li>plural: marquises</li><li>The wife or widow of a marquis.</li><li>A lady holding the rank equal to that of a marquis.</li><li>Jewelry: Also called marquise cut.<ul><li>A gem cut, especially for a diamond, yielding a low-pointed oval with many facets, usually 58.</li><li>A gem cut in this style, especially a diamond.</li><li>Compare navette.</li></ul></li><li>(Often used with a plural verb) British: marquee (def 3).</li><li>Also called marquise chair: French Furniture.<ul><li>A wide bergère.</li></ul></li></ul>