A nobleman in England, France, and Germany, of a rank next below that of duke, but above a count. Originally, the marquis was an officer whose duty was to guard the marches or frontiers of the kingdom. The office has ceased, and the name is now a mere title conferred by letters patent or letters close.

A surname from French.

plural of Marquis reagent

A spot test used to identify various recreational drugs, etc.

(chiefly historical) A marchioness, especially one who is French. / A marquee. / (jewelry) An oval cut diamond with pointed ends.

plural of marquis / plural of marquise

A sheer cotton fabric used for mosquito nets and curtains

plural of marquisette

plural of marquisate

The territory held by a marquis, margrave or marchioness. / The state or rank of a marquis.