What is the answer to "20-vol. reference work" in the Newsday Crossword?

The answer to the Newsday Crossword clue "20-vol. reference work" is OED (3 letters).

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20-vol. reference work Newsday Crossword Clue

Down clue · from the August 16, 2026 puzzle

Stuck on “20-vol. reference work” from the Newsday Crossword? Here is the verified answer:

Answer

OED

3 letters · Down · last seen August 16, 2026

Camera illumination5 Native to4 Pop singer Del Rey4 __-skid brakes4 No longer edible5 "Climb aboard!"5 Programmer's output4 Fill to excess4 It means "wine"4 Provide proof for8 Month in Madrid5 Bibliography abbr.4