/ Dictionary / Index S singleness: Meaning and Definition of Find definitions for: sin•gle•ness Pronunciation: (sing'gul-nis), [key] — n. the state or quality of being single. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: singleness (Thesaurus) single-name paper single occupancy Related Content Daily Word Quiz: garrulous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language