/ Dictionary / Index D Dayak: Meaning and Definition of Find definitions for: Day•ak Pronunciation: (dī'ak, -uk), [key] — pl. -aks, -ak. a member of any of several indigenous, Austronesian-speaking tribal peoples of Sarawak and Indonesian Borneo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. day dayan* 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