Subway system
Subway system noun - An electric railway operating below the surface of the ground (usually in a city).
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Synonyms for Subway system
Tube is a synonym for subway system in subway topic. In some cases you can use "Tube" instead a noun phrase "Subway system", when it comes to topics like metro.
Tube
Tube noun - An electric railway operating below the surface of the ground (usually in a city).
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Synonyms for Tube
Subway system is a synonym for tube in subway topic. You can use "Subway system" instead a noun "Tube", if it concerns topics such as metro.
Mutual synonyms
Cite this Source
Tube and Subway system. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/subway_system/tube
Subway system & Tube. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/subway_system/tube>.
Tube or Subway system. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/subway_system/tube.
Google Ngram Viewer shows how "subway system" and "tube" have occurred on timeline