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Symbol used in summation NYT Crossword Clue

Down clue · from the May 22, 2026 puzzle

Stuck on “Symbol used in summation” from the New York Times Crossword? Here is the verified answer:

Answer
SIGMA
5 letters · Down · last seen May 22, 2026

More clues from the May 22, 2026 puzzle

1A Guns, so to speak 6 1D Woodpeckers' peckers 5 2D "Really, my pleasure" 10 3D "Sticky" birthday treats? 10 4D Tahari or Saab of fashion 4 5D Blame (on) 3 7A Prefix with American 4 7D Classical piece said to be the inspiration for Chopin's "Fantaisie-Impromptu" 15 8D Kepler-22b or Kepler-186f, e.g. 15 9D Calypso cousin 3 10D Flat, say 3