Crossword Genius

Vinegar, e.g. (4)

Ross

I believe the answer is:

acid

(Other definitions for acid that I've seen before include "Sour - vitriolic" , "Sour - type of rain or drop" , "See 4 Across" , "Opposite of alkali; sour" , "Caustic and biting" .)

I've seen this clue in the King Feature Syndicate and 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.