Chess game's ending (4)

I believe the answer is:

mate

(Other definitions for mate that I've seen before include "Chess finale" , "Spouse or informal pal (4)" , "Friend; chess move" , "Friend; ship's officer" , "China" .)

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.