Antony (?ænt?n?) n (Biography) Mark. Latin name Marcus Antonius. ?83?30 bc, Roman general who served under Julius Caesar in the Gallic wars and became a member of the second triumvirate (43). He defeated Brutus and Cassius at Philippi (42) but having repudiated his wife for Cleopatra, queen of Egypt, he was defeated by his brother-in-law Octavian (Augustus) at Actium (31)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014An?to?ny (?æn t? ni) n. Mark (Marcus Antonius), 83??30 B.C., Roman general: friend of Caesar; rival of Augustus Caesar. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.