Crossword Genius

Large expanse of grassland (7)

Ross

I believe the answer is:

prairie

(Other definitions for prairie that I've seen before include "Treeless grassy plain, in the old West perhaps" , "Large grassland region" , "Grasslands" , "Extensive US grassland" , "Open grassland of North America" .)

I've seen this clue in The 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.