Naturism, or nudism, is a cultural and political movement practicing, advocating, and defending personal and social nudity, most but not all of which takes place on private property. The term may also refer to a lifestyle based on personal, family, or social nudity. Naturism may take a number of forms. It may be practiced individually, within a family, socially, or in public. Additionally, there is also militant naturism, including campaigning, and extreme naturism is sometimes considered a separate category.

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