Dictionary
closed book
noun
Definition of CLOSED BOOK
: something beyond comprehension : enigma
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First Known Use of CLOSED BOOK
1913
Related to CLOSED BOOK
- Synonyms
- mystery, conundrum, enigma, head-scratcher, mystification, puzzle, puzzlement, riddle, secret
Rhymes with CLOSED BOOK
bankbook, billhook, black book, blue book, boat hook, cant hook, caoutchouc, casebook, chapbook, checkbook, Chinook, codebook, cookbook, daybook, duck hook, e-book, fishhook, gang hook, good book, guidebook, handbook, hornbook, hymnbook, Innsbruck, jump hook, logbook, make book, matchbook, mouth hook, nainsook, nonbook, notebook, outlook, passbook, Pembroke, phrase book, playbook, pothook, prayer book, promptbook, psalmbook, schoolbook, scrapbook, sketchbook, skyhook, songbook, sourcebook, studbook, stylebook, textbook, trade book, unhook, white book, Windhoek, wordbook, workbook, yearbook
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