The clue "Book of synonyms" last appeared in the Irish Times (Simplex) crossword on February 10, 2021. The correct answer for this puzzle is "THESAURUS", a 9-letter word.
Solution THESAURUS is our most searched for solution by our visitors. Solution THESAURUS is 9 letters long. We have 0 further solutions of the same word length.
There are 10 solutions. The longest is THESAURUS with 9 letters, and the shortest is PUN with 3 letters.
Yes, "BOOK OF SYNONYMS" is currently trending (last update: 29 May 2026). Many solvers seem to find this clue challenging! Other clues with traffic peaks today are: ME, Worry, Delectable, Widespread and Utter.
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Solutions are between 3 and 9 letters long.