/ Dictionary / Index T Tuatha Dé Danann: Meaning and Definition of Find definitions for: Tu•a•tha Dé Da•nann Pronunciation: (t'u-hu dā dä'nun), [key] — Irish Legend. Irish Legend. a race of gods or demigods who defeated the Fomorians and ruled Ireland during a golden age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tuatara tub Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language