“Tiny unit of matter” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.ATOM is the answer to the New York Times crossword clue “Tiny unit of matter”. It was last seen in the puzzle of March 2, 2026, where it runs at 57 Across and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.