Determining the exact word count for Sarah J. Maas's A Court of Thorns and Roses (ACOTAR) is tricky because it varies slightly depending on the edition (hardcover, paperback, ebook). Different formatting and variations in text can slightly alter the word count. There's no single definitive answer readily available from the publisher.
However, a reasonable estimate, based on similar-length fantasy novels and online discussions, places the word count of A Court of Thorns and Roses in the 70,000 - 80,000 word range. This is a general approximation, and it's best not to rely on this number for precise academic or analytical purposes. If you need a truly accurate count, you'd have to manually count the words in a specific edition of the book.