De·nis or De·nys (d?n??s, d?-n??), Saint Third century ad. Patron saint of France. Sent to minister to the Gauls as the first bishop of Paris, he suffered martyrdom by decapitation.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Denis (?d?n?s; French d?ni) n1. (Biography) Maurice (m?ris). 1870?1943, French painter and writer on art. One of the leading Nabis, he defined a picture as “essentially a flat surface covered with colours assembled in a certain order”2. (Biography) Saint Denis Saint Denys 3rd century ad, first bishop of Paris; patron saint of France. Feast day: Oct 9Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Den?is (?d?n ?s; Fr. d??ni) n. Saint, died A.D. c280, 1st bishop of Paris: patron saint of France. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.