Definition

Noun: A railway track (or the measurement of its width) that is narrower than the standard gauge of 56.5 inches (1,435 mm). Narrow-gauge railways are often used in mountainous terrain, for industrial purposes, or in locations where construction costs need to be minimized.

Usage

The term "narrow gauge" is used to describe a specific type of railway line and its physical characteristics. - It primarily functions as a noun, often used attributively (as a noun modifier) before other nouns (e.g., narrow-gauge railway, narrow-gauge line). - It refers to the physical track itself or, more specifically, to the measurement of the distance between the inner sides of the two rails.

Examples

• The historic narrow gauge winds through the mountain pass, offering stunning views.
• This mining company uses a narrow gauge to transport ore from the pit.
• The width of that track is a narrow gauge of only 36 inches.
• We took a ride on a charming narrow-gauge railway built in the 19th century.

Advanced Usage

• As a Standard of Comparison: The term is inherently comparative, defined in opposition to "standard gauge" and "broad gauge."
• Technical Specification: In engineering and rail transport contexts, "gauge" specifically means the distance between the rails. Therefore, "narrow gauge" is a precise technical classification for any gauge measurement below 1,435 mm.

Variants and Related Words

• Narrow-gauge (adjective): The hyphenated form is commonly used when the term functions as a compound modifier before a noun (e.g., a narrow-gauge locomotive).
• Standard Gauge (noun): The typical railway gauge of 56.5 inches (1,435 mm).
• Broad Gauge (noun): A railway gauge wider than the standard gauge.
• Gauge (noun): The distance between the inner faces of the two rails of a railway track.

Synonyms

• Light railway (in some contexts, though this refers more to the line's capacity and use than its precise gauge).
• There is no direct single-word synonym; the term is a specific technical descriptor.

Related Phrases

• Narrow-gauge railroad/railway: The complete system using narrow-gauge tracks.
• To be laid to a narrow gauge: A phrase describing the construction of a track with this specific width.
  • The line was laid to a narrow gauge to reduce construction costs in the rugged terrain.

Notes

• The concept is crucial in rail transport history and engineering. Narrow-gauge lines often have tighter curves and can be built more cheaply, making them suitable for difficult landscapes, plantations, mines, and early industrial networks. They are distinct from miniature railways, which are built for amusement and use an even smaller gauge.

Noun

1. a railroad track (or its width) narrower than the standard 56.5 inches