This clue appeared in the NYT Crossword on Sunday, December 21, 2025 (67 Across). The answer is hidden below until you want it. Sunday puzzles are large (21 by 21) and themed, about as hard as a Wednesday or Thursday.
Answer length: 4 squares
First letter
S _ _ _
First and last letters
S _ _ I
Show the answer
About the answer
SETI as a word: A language of Papua New Guinea; (astronomy) Acronym of search for extraterrestrial intelligence.
SETI has been an answer once in the NYT Crossword and Mini puzzles we have on file, which go back to October 23, 2025.
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