/ Dictionary / Index H hard dinkum: Meaning and Definition of Find definitions for: hard' din'kum Pronunciation: [key] — Australian Informal. Australian Informal. hard work; a difficult task. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hard currency hard disk Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language