Crossword Genius

World traveler?

Ross

I believe the answer is:

ufo

(Other definitions for ufo that I've seen before include "Initially and formally, flying saucer" , "Mystery in the sky" , "Airborne mystery" , "ET ship" , "Something mysterious" .)

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.