All these are used to add flavor to food but they are actually slightly different. Herbs refers to the leaves of plants that are used such as basil rosemary, thyme which are all leaves. Spices on the other hand, are usually flavorings derived from seeds, stems, root or bark of trees and plants such as cinnamon, nutmeg and turmeric. Condiments are processed foods that are sold made from a variety of herbs, spices and other flavorings that you can add to food for flavor.