A lime is a small green citrus fruit that belongs to the same family as lemons and oranges. It has a slightly tart and acidic taste, and is often used as a garnish or in drinks for flavor. The skin of a lime is thin and green, with a slightly rough texture. The flesh inside is a pale green color and is juicy. Limes are typically smaller and rounder than lemons, and have a more acidic flavor. They are often used in cooking, especially in dishes from Latin America, Southeast Asia, and the Caribbean.