Crossword Genius

Sub letters (3)

Ross

I believe the answer is:

uss

'sub letters' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Another definition for uss that I've seen is " United States Ship (abbr.)".)

I've seen this clue in The Wall Street Journal.
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.