/ Dictionary / Index C crown quarto: Meaning and Definition of Find definitions for: crown' quar'to Pronunciation: [key] — Chiefly Brit. Chiefly Brit. a size of book, about 7 × 10 in. (19 × 25 cm), untrimmed. Abbr.: crown 4to Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crown princess crown roast Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language