Crossword Genius

___ 66 (classic highway)

Ross

I believe the answer is:

route

(Other definitions for route that I've seen before include "Way travelled" , "Established line of travel" , "Itinerary; way" , "Course of 7" , "Course of journey" .)

I've seen this clue in The New York Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.