Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
subway system | Yes | No | No | No |
railway system | Yes | No | No | No |
subway system (noun) | railway system (noun) |
---|---|
an electric railway operating below the surface of the ground (usually in a city) | line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight |