Amtrak express train

ACELA

This high-speed train connects major Northeast cities like Boston, New York, and Washington, D.C., often reaching speeds over 150 mph.

Amtrak’s high-speed train service along the Northeast Corridor is called the Acela, often styled as "ACELA" in branding. The clue plays it straight—no wordplay or tricks—just a direct reference to the well-known express train that runs between Boston and Washington, D.C. If you’ve ever traveled that route or seen Amtrak ads, the name likely stands out as the fastest option they offer. The answer fits neatly since "Acela" is both the official name and the common shorthand for the service.