Nature/ˈneɪtʃər/ Definition 1 of 5Pro Tip 1/3Not Man-Made This definition refers to things created by nature itself, not by human intervention. The vast forests are untouched by human hands, pure nature. Pro Tip 2/3Wide Scope It covers a broad range of topics including geography, biology, and ecology. Conservation efforts aim to protect the diversity of nature. Pro Tip 3/3Outdoor Activities Often used when referring to activities that involve interacting with the natural environment. They went on a nature hike to observe wildlife.