- See under gauge (def. 15).
- of or relating to equipment designed for a railroad having track of a broad gauge: broad-gauge rolling stock.
- of wide scope, application, or experience: broad-gauge efforts to improve the health of our citizens.
- a railway track with a greater distance between the lines than the standard gauge of 56 1/2 inches (about 1.44 metres) used now by most mainline railway systems
- of, relating to, or denoting a railway having this track
