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1. A distance between the rails of a railroad track that is greater than the standard width of 56 1/2 inches (143.5 centimeters).
2. A locomotive, car, or railway line of this gauge.
(Railways) a railway track with a greater distance between the lines than the standard gauge of 56 inches (about 1.44 metres) used now by most mainline railway systems
(Railways) of, relating to, or denoting a railway having this track
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|Noun||1.||broad gauge - a railroad track (or its width) broader than the standard 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