| Main Entry: | railroad |
| Part of Speech: | noun |
| Definition: | train line |
Synonyms: |
elevated railway, line, metro, monorail, rail line, railway, streetcar line, subway, tracks, trolley line, tube, underground railway |
| Main Entry: | public transportation |
| Part of Speech: | noun |
| Definition: | public transit service |
Synonyms: |
LRT, busline, light rail, mass transit, metro, rail rapid transit, railway, rapid transit, subway, urban transportation service |
| Main Entry: | subway |
| Part of Speech: | noun |
| Definition: | underground railroad |
Synonyms: |
chute, metro, tube, underground |