- Emmanuel Joseph (ɛmanɥɛl ʒozɛf), called Abbé Sieyès. 1748–1836, French statesman, political theorist, and churchman, who became prominent during the Revolution following the publication of his pamphlet Qu'est-ce que le tiers état? (1789). He was instrumental in bringing Napoleon I to power (1799)
WordReference Random House Unabridged Dictionary of American English © 2020
Sie•yès (sye yes′),USA pronunciation n.
(sye yes′),USA pronunciation ("Abbé Sieyès''), 1748–1836, French priest and revolutionist.
Collins Concise English Dictionary © HarperCollins Publishers::
Sieyès /French: sjejɛs/ n