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1. A small flag or pennant carried as a standard by a military unit.
2. A soldier bearing such a flag or pennant.
[French, from Old French, from Old Italian guidone, from guidare, to guide, from Old Provençal guidar; see guide.]
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.
1. (Military) a small pennant, used as a marker or standard, esp by cavalry regiments
2. (Military) the man or vehicle that carries this
[C16: from French, from Old Provençal guidoo, from guida guide]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a small military flag carried as a guide for signaling or identification.
2. a soldier carrying a guidon.
[1540–50; < Middle French < Italian guidone=guid(are) to guide + -one n. suffix]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.