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1. A standardized distance of 56.5 inches (143.5 centimeters) between the rails of a railroad track.
2. A locomotive, car, or railway line of this gauge.
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.
(Railways) of, relating to, or denoting a railway with a standard gauge
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||standard gauge - railroad track having the standard width of 56.5 inches|
railroad track, railway, railroad - a line of track providing a runway for wheels; "he walked along the railroad track"
gauge - the distance between the rails of a railway or between the wheels of a train
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