- Refers to the cultures of the continent of Africa, which is bounded by the Atlantic Ocean, the Indian Ocean, and the Mediterranean Sea.
- Refers to works executed by cutting a figure or design out of a solid material such as stone or wood. It typically refers to works that are relatively small in size, are part of a larger work, or are not considered art. For large and medium-sized three-dimensional works of art, use the broader term "sculpture" or another appropriate term.
- Hooved animal. Original populations of Equus caballus were once found in the steppe zone from Poland to Mongolia. Now domesticated, horses occur throughout the world and in feral populations in some areas. Three of the several early breeds of horse - Przewalski's horse from central Asia, the tarpan from eastern Europe and the Ukrainian steppes, and the forest horse of northern Europe - are generally thought to have been the ancestral stock of modern domestic horses. According to this line of thinking, Przewalski's horse and the tarpan formed the basic breeding stock from which the southerly 'warm-blooded' horses developed, while the forest horse gave rise to the heavy, 'cold-blooded' breeds. All modern breeds are divided as light, fast, spirited breeds typified by the modern Arabian, heavier, slower, and calmer working breeds typified by the Belgian, and intermediate breeds typified by the Thoroughbred. They are also classified according to where they originated (e.g., Percheron, Clydesdale, and Arabian), by the principal use of the horse (riding, draft, coach horse), and by their outward appearance and size (light, heavy, pony).
- Styles and cultures from the region comprising the westernmost area of the African continent, defined by the United Nations as including the modern nations of Benin, Burkina Faso, Côte d'Ivoire, Cape Verde, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, and Togo.
- The principal tissue of trees and other plants that provides both strength and a means of conducting nutrients. Wood is one of the most versatile materials known.