/ Dictionary / Index S sheet metal: Meaning and Definition of Find definitions for: sheet' met"al Pronunciation: [key] metal in sheets or thin plates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sheet lightning sheet music Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language