Wine designation is a term used to describe the quality and style of a particular wine. The three most common designations are SEC, BRUT, and CRU. SEC is a French term meaning 'DRY, ' indicating that the wine has little to no residual sugar. BRUT is also a French term meaning 'very DRY, ' indicating that the wine has almost no residual sugar. Finally, CRU is a French term meaning 'GROWTH, ' indicating that the wine is made from grapes grown in a single vineyard or village.