Geometrical intersection (6)

I believe the answer is:

vertex

(Other definitions for vertex that I've seen before include "Highest point" , "Summit" , "Crown, apex" , "Corner (of triangle)" , "where sides meet" .)

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.