a width, between the rails of a railroad, greater than standard gauge (56.5 in, or 143.5 cm)
- A distance between the rails of a railroad track that is greater than the standard width of 56 1/2 inches (143.5 centimeters).
- A locomotive, car, or railway line of this gauge.
- Having a broad gauge. Used of a railroad track.
- Informal Having a wide scope: broad-gauge criticism.
(plural broad gauges)