/ Dictionary / Index K King's mark: Meaning and Definition of Find definitions for: King's' mark' Pronunciation: [key] one of the marks composing a hallmark, consisting of the head of a leopard, formerly a crowned head. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Kingsley King's Men Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language