/ Dictionary / Index R racking: Meaning and Definition of Find definitions for: rack•ing Pronunciation: (rak'ing), [key] — n. Masonry. the stepping back of the ends of courses successively from bottom to top in an unfinished wall to facilitate resumption of work or bonding with an intersecting wall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: racking (Thesaurus) Rackham rackle Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language