Determine the size or quantity of (7)

I believe the answer is:

measure

(Other definitions for measure that I've seen before include "Act - dance" , "of specified size" , "Established the size" , "capacity" , "Action - amount" .)

I've seen this clue in The Mirror.

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.