noun
a standard measurement of the distance between the two rails on a railroad track, typically wider than the standard gauge
adjective
describing something that is wider or broader than usual or standard
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The new railway line was constructed with a broad gauge to accommodate heavier trains.
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The trains on this track are running on a broad gauge, so they can carry more goods.
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I heard they're switching to a broad gauge on that route, so the trains will be faster.
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Having a broad gauge perspective allows you to see the bigger picture in any situation.