/ Dictionary / Index A altar board: Meaning and Definition of Find definitions for: al'tar board" Pronunciation: [key] — Coptic Church. an elaborately carved wooden panel, placed in a recess on top of an altar during the Mass, on which the chalice and paten rest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. altarage altar boy Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language