/ Dictionary / Index D dinkum: Meaning and Definition of Find definitions for: din•kum Pronunciation: (ding'kum), [key] — adj. Australian. genuine; authentic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dinkey dinky Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language