/ Dictionary / Index C case bay: Meaning and Definition of Find definitions for: case' bay" Pronunciation: [key] — Carpentry. Carpentry. (in a roof or floor) the section between two principals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. caseation casebook Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language