Fine″ness, n. [From Fine, a.] 1. The quality or condition of being fine.
2. Freedom from foreign matter or alloy; clearness; purity; as, the fineness of liquor.
The fineness of the gold, and chargeful fashion. Shak.
3. The proportion of pure silver or gold in jewelry, bullion, or coins.
☞ The fineness of United States coin is nine tenths, that of English gold coin is eleven twelfths, and that of English silver coin is ⁹²⁵⁄₁₀₀₀.
4. Keenness or sharpness; as, the fineness of a needle's point, or of the edge of a blade.