The word naturism was used for the first time in 1778 by a French-speaking Belgian, Jean Baptiste Luc Planchon (1734–1781), and was advocated as a means of improving the 'l’hygiène de vie' (natural style of life) and health. The definition of naturism is: "a lifestyle in harmony with nature, expressed through social nudity, and characterised by self-respect of people with different opinions and of the environment.".
Therefore, textile or textilist is a non-naturist person, non-naturist behaviour or non-naturist facilities. e.g. the textile beach starts at the flag, they are a mixed couple - he is naturist, she is textile. Textile is the predominant term used in the UK. Clothing optional and nude optional (US specific) describe a policy or a venue that allows or encourages nudity but tolerates the wearing of clothes.