Au·lis (ô?l?s) An ancient port of east-central Greece in Boeotia. According to tradition, it was the embarkation point for the Greek fleet during the Trojan War.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.Aulis (???l?s) n (Placename) an ancient town in E central Greece, in Boeotia: traditionally the harbour from which the Greeks sailed at the beginning of the Trojan warCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014