/ Dictionary / Index G grademark: Meaning and Definition of Find definitions for: grade•mark Pronunciation: (grād'märk"), [key] — n. a symbol noting the relative quality of a product, as lumber. —v.t. to mark with a grademark. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grade line grade point Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language