Moderate as in puzzler To close out or finalize something, typically indicating the completion or conclusion of a process or situation. Clear All
5 Example Sentences Showcasing the Meaning of 'Closed Book'
The detective found the encrypted message to be a closed book until he deciphered the code.
The novel's intricate plot and hidden motives made it a closed book for readers until the final chapters unfolded.
The negotiations between the two countries were a closed book until diplomats unveiled the historic agreement.
The chef felt a sense of relief as he closed book the preparation for the grand feast.
The teacher asked the students to closed book their research papers and submit them before the deadline.
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