The members of the nobility, especially the French nobility. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "noblesse" in a sentence
"Miüsov, my relation, prefers to have _plus de noblesse que de sincérité_ in his words, but I prefer in mine _plus de sincérité que de noblesse_, and — damn the _noblesse_!"
"The drawing-room, which was called the salle de compagnie, was used only on ceremonious occasions, Easter, the bishop's visit, or when the noblesse from the surrounding country called, and the proudest among them were proud to do so."
"There is an antiquated concept called noblesse oblige."