On this page you may find the Ref. work that took more than 70 years to complete crossword puzzle clue answers and solutions. This crossword clue was last seen on August 20 2021 in the popular New York Times Crossword Puzzle. We have found 1 possible solution matching the query “Ref. work that took more than 70 years to complete” and the answer is shown below.
The possible answer is:
OED
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