WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / C / closed book closed book noun 11 letters Scrabble 19 WWF 22 Definitions noun something that baffles understanding and cannot be explained enigmamysterysecret Look “closed book” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →