/ Dictionary / Index S singleton: Meaning and Definition of Find definitions for: sin•gle•ton Pronunciation: (sing'gul-tun), [key] — n. a person or thing occurring singly, esp. an individual set apart from others: a research program involving twins and singletons. a card that is the only one of a suit in a hand. a set consisting of one given element. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: singleton (Thesaurus) single ticket single-track Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language