| 铁路 | tiě lù | railroad; railway; Classifiers: 条 | |
| 钢铁 | gāng tiě | steel | |
| 地铁 | dì tiě | subway; metro | |
| 铁人 | tiě rén | Ironman | |
| 铁军 | tiě jūn | invincible army |
| 1 | The slow train is cheaper than the high-speed train. | |
| 2 | I take the subway to work. | |
| 3 | We are waiting for you at the subway station. | |
| 4 | I am waiting for you on the subway. | |
| 5 | I take the subway to school every day. |
