Blond or blonde is a light color of hair or a person with this color hair. The spelling blonde means a female with this hair colour, and the spelling blond can mean a male with the same hair color. The color itself can have either spelling (blonde or blond), according to Merriam-Webster's Dictionary.
Some people are blonde because they have less pigment in their hair than dark haired people. To be blonde is usually to have blonde ancestors. Then it is genetic - blondes have genes that make them blond. Sometimes it is not genetic - this is called albinism. People can also use chemicals to make themselves blonde. Bleach is sometimes used to make the color of a person's hair lighter.
Most people are not blondes by their genes. Only some people, mostly with European ancestry, are blondes by their genes, and also some Australian Aborigines have a different gene that makes them blonde. Natural blondes are most common around the Baltic Sea and Scandinavia. The Nordic countries such as Sweden, Norway, Denmark, Iceland, and Finland also have many blond people. Ireland and Scotland also have a high number of natural blondes. According to recent genetic analysis, both mtDNA and Y chromosome exist in Austrians. There is also a large number of blondes in England, Baltic countries, Slavic countries (especially Poland), north-western parts of Russia and among European descent that have lived in Kazakhstan since the Soviet Union. Natural blondes are also common in Canada, United States, Australia, New Zealand, Argentina, Chile, The Netherlands, United Kingdom, and Germany. Light hair can also brought on by environmental factors, especially exposure to sunlight.