/ Dictionary / Index W Wadai: Meaning and Definition of Find definitions for: Wa•dai Pronunciation: (wä-dī'), [key] — n. a former independent sultanate of the Sudan, in N central Africa: now part of the Republic of Chad. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wadable wadding Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language