16 entries under track topic. ×

12
tube(noun, line, underground, railway)
11
subway(noun, line, underground, railway)
3
railroad(noun, line, network, reticulation)
3
rail line(noun, expression, line, railway)
3
railway(noun, line, subway)
2
elevated railway(noun, expression, line, railway)
2
line(noun, railway, subway)
2
monorail(noun, line, network, railway)
2
rail(noun, line)
2
streetcar line(noun, expression, line, railway)
2
trolley line(noun, expression, line, railway)
1
tracks(noun, line, network, railway)
1
train line(noun, expression, line, railway)
1
underground railway(noun, expression, line, railway)
0
route(noun, line)
0
train track(noun, expression, line)
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APASmart Define. (2015). metro thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/metro/thesaurus/synonyms
ChicagoSmart Define. 2015. "metro thesaurus" https://smartdefine.org/metro/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, metro thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/metro/thesaurus/synonyms>.
MLASmart Define. "metro thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/metro/thesaurus/synonyms>