What does "chevalier" mean?

Chevalier: A member of certain orders of knighthood. Chevalier d'industrie ( Etym: [F.], one who lives by persevering fraud; a pickpocket; a sharper. -- The Chevalier St. George (Eng. Hist.), James Francis Edward Stuart (son of James II.), called "The Pretender." -- The Young Chevalier, Charles Edward Stuart, son of the Chevalier St. George.

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