What is difference between Metro and train?

Related questions

1. Can I load my metro card online?
2. How do I get from Terminal 1 to Metro?
3. Is Delhi Metro safe for tourists?
4. How much is St Petersburg metro?
5. Is Metro closed tomorrow?
6. How fast do coal trains go?
7. What is the fastest bullet train?
8. How do Metro tokens work?
9. What time does the St Petersburg metro close?
10. How fast do express trains go?

Tags

1. #suburbs
2. #distances
3. #cities
4. #trains
5. #metropolitan
6. #local
7. #areas
8. #designed
9. #while
10. #connect
11. #train
12. #specifically
13. #metro
14. #within