“Mathematical constant equal to two times pi” crossword clue
Answer
T
A
U
•••TAU
Reveal the answer to see why it works and where this clue has appeared before.TAU is the answer to the New York Times crossword clue “Mathematical constant equal to two times pi”. It was last seen in the puzzle of June 21, 2026, where it runs at 111 Across and fills 3 squares. It crosses 3 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.
Crossing entries
Jun 21, 2026 grid106DSmall superhero whose catchphrase starts "Up and at ’em"7 ltrs›112DSelf-reflective question6 ltrs›113DStart to take off, as a onesie6 ltrs›
More clues from this puzzle
Jun 21, 20261ALetters accompanying applications, for short4 ltrs›5AIncludes without others knowing, in a way4 ltrs›9A"I haven't a clue"7 ltrs›16APlant with an edible inner gel4 ltrs›17AUp to snuff4 ltrs›18AAll over the place7 ltrs›19ADrove in an A.T.V., say, informally9 ltrs›21AFighting technique used by [circled letters] (as explained at 76-Across)7 ltrs›
Back to the full Jun 21, 2026 answer list, or browse the puzzle archive.