transportation

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Across
  1. 3. An underground rail system in cities
  2. 6. A board with wheels used for gliding
  3. 9. A human-powered vehicle, common in Asia
  4. 13. An aircraft that can hover and move vertically
  5. 15. A vehicle running on tracks, often in urban areas
  6. 16. A vessel designed for underwater travel
  7. 17. A single-rail train system, often above ground
  8. 18. A two-wheeled motorized vehicle
  9. 19. A boat for transporting people and vehicles
Down
  1. 1. A large vehicle for public transportation
  2. 2. A powered flying vehicle for air travel
  3. 4. A watercraft for traveling on rivers and lakes
  4. 5. A vehicle for hire with a driver
  5. 7. A series of connected railway cars
  6. 8. A vehicle on tracks, often used for sightseeing
  7. 10. A common mode of personal transportation
  8. 11. A small, motorized or non-motorized vehicle
  9. 12. A self-balancing, two-wheeled personal transporter
  10. 14. A two-wheeled vehicle powered by pedaling