/ Dictionary / Index O oneness: Meaning and Definition of Find definitions for: one•ness Pronunciation: (wun'nis), [key] — n. the quality of being one; singleness. uniqueness. sameness; identity. unity of thought, feeling, belief, aim, etc.; agreement; concord. a strong feeling of closeness or affinity; union: He feels a oneness with God. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oneness (Thesaurus) 1-naphthol one-nighter Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language