/ Dictionary / Index D doubleton: Meaning and Definition of Find definitions for: dou•ble•ton Pronunciation: (dub'ul-tun), [key] — n. Chiefly Bridge. a set of only two cards of the same suit in a hand as dealt: The other player held a doubleton. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: doubleton (Thesaurus) double time double-tongue Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language