/ Dictionary / Index S Sheetrock: Meaning and Definition of Find definitions for: Sheet•rock Pronunciation: (shēt'rok"), [key] — Trademark. Trademark. a brand name for a plasterboard of gypsum between paper. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sheetrock (Thesaurus) sheet pile sheet-web weaver Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language