The body of a wine refers to its weight or fullness on the palate, influenced by alcohol content, sugar, and extract. Wines are typically described as light, medium, or full-bodied. Light-bodied wines feel lighter and more delicate, medium-bodied wines offer a balanced weight, and full-bodied wines are richer and heavier. The body of a wine can give clues about its grape variety, alcohol level, and winemaking practices.