1.
subway, underground railway
A railway system that runs underground in a city.
地下鉄 means "subway" or "underground railway." It combines 地下 (underground) + 鉄 (railway).
COMMON EXPRESSIONS:
ALTERNATIVE TERMS:
- メトロ: metro (used in 東京メトロ)
- 地下鉄道: underground railway (formal)
IN JAPAN: Major cities like Tokyo, Osaka, Nagoya, and Fukuoka have extensive subway networks. Tokyo's system is particularly complex with multiple operators.