subway

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. an electric railway operating below the surface of the ground (usually in a city) (Freq. 3)
- in Paris the subway system is called the 'metro' and in London it is called the 'tube' or the 'underground'
• Syn:
metro, tube, underground, subway system
• Hypernyms:
railway, railroad, railroad line, railway line, railway system
2. an underground tunnel or passage enabling pedestrians to cross a road or railway
• Syn:
underpass
• Hypernyms:
tunnel

• Từ đồng nghĩa / Synonyms:
  underpass, metro, tube, underground, subway system