Words are drawn from many different worlds including art, artists, crafts and design, painting, printing and sculpture, the decorative arts, gems, fashion, textiles, physics, maths, astronomy, chemistry, cosmetics, dyes, colourants, paints, biology, geography, geology, minerals, history, art history, social history, religion, philosophy, heraldry, mythology and symbolism, language, linguistics, grammar, slang, literature (including the Bible and Shakespeare), music, theatre, photography, television and film, psychology and human behaviour, education, politics, commerce, economics, finance, law, travel, war, vision and colour-blindness, medicine, drugs, colour therapy, food and drink, colour theory and many others.