18, for 47-Across WSJ Crossword Clue
Crossword Answer
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explanationFrequently Asked Questions About This Clue
The most common and recent 4-letter answer for "18, for 47-Across" is ATNO.
The clue refers to the atomic number (ATNO) of an element. In a crossword, '18' is likely the atomic number of an element listed at 47-Across, which would be Argon (Ar).
This clue was last seen in the WSJ Crossword on December 04, 2025.
ATNO is an abbreviation for atomic number, the number of protons in an atom's nucleus.
5 for B or 6 for C, e.g.
The clue “18, for 47-Across” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated December 4 2025, the definitive 4-letter answer is: ATNO.
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