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1. A training course filled with obstacles, such as ditches and walls, that must be negotiated speedily by troops undergoing training or participants in a race.
2. A situation full of obstacles that must be overcome.
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. a military training area having obstacles, as hurdles and ditches that must be surmounted or crossed in succession.
2. an event, situation, or the like with many challenges.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007