"__ you sure?" (3)

There are a few possibilities for this:

Which length description are you looking for?:

4 6

are

(Other definitions for are that I've seen before include "Exist; square measure" , "Is, in the plural" , "is for more than one" , "live" , "(We/you/they) exist" .)

I've seen this clue in the LA Times, the USA Today and the Universal.

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.