/ Dictionary / Index F fineness: Meaning and Definition of Find definitions for: fine•ness Pronunciation: (fīn'nis), [key] — n. the state or quality of being fine. the proportion of pure precious metal in an alloy, often expressed in parts per thousand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fineness (Thesaurus) fine nail fineness ratio Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language