Related Clues:
- PAID, for one
- Characteristic mark
- Fast way to get to Washington
- It's usually stuck in a corner
- Snail-mail need
- With 65 Across, speedy train
- High-speed train from Boston to Washington
- Licked square
- Track speedster beginning in 2000
- Northeast express train
- Amtrak debut of 11/17/2000
- Boston-to-Washington speedster
- Speedy Washington-to-Boston link
- Amtrak express
- Speedy Boston-to-Washington transport