Outdoor refers to activities, spaces, or environments that are situated outside a building or structure, typically in the natural environment. The term encompasses a wide range of contexts, including recreational activities such as hiking, camping, and sports, as well as natural areas like parks, forests, and open fields. Outdoor settings usually involve exposure to elements such as sunlight, air, and weather, differentiating them from indoor environments. Outdoor can also imply a setting that promotes interaction with nature, offering opportunities for exploration, physical activity, and leisure in fresh air.