/ Dictionary / Index A assay groove: Meaning and Definition of Find definitions for: as'say groove" Pronunciation: [key] (in silverwork) a furrow left in a piece by the digging out of metal for assay. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. assay cup assay office Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language