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Letter after sigma

Nora WhitfieldNora Whitfield Crossword Editor · Verified answers

Looking for the answer to the USA Today Crossword clue “Letter after sigma”? The solution is TAU, a 3-letter word. This clue was most recently seen in the September 3, 2026 (Thursday) USA Today Crossword. Tap any date below to open that day's complete puzzle, or search another clue from the bar above.

Answer
TAU

Last appearance

September 3, 2026ThursdayTAU

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