The clue "Reef builder" last appeared in the New York Times crossword on September 14, 2023. The correct answer for this puzzle is "CORAL", a 5-letter word.
Solution CORAL is 5 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is CORAL with 5 letters, and the shortest is CORAL with 5 letters.
Indeed, "REEF BUILDER" is among today´s most searched crossword clues (latest update: 22 Dec 2025). Many solvers are struggling with this one!
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The solution is 5 letters long.