/ Dictionary / Index C cavity wall: Meaning and Definition of Find definitions for: cav'ity wall" Pronunciation: [key] — Masonry. Masonry. a wall built with an enclosed inner space to prevent penetration by water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cavity resonator cavo-relievo Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language