/ Dictionary / Index S softener: Meaning and Definition of Find definitions for: soft•en•er Pronunciation: (sô'fu-nur, sof'u-), [key] — n. any admixture to a substance for promoting or increasing its softness, smoothness, or plasticity. Seewater softener. a person or thing that softens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: softener (Thesaurus) soften soft energy Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language