Natural is defined as "of or relating to nature"; this applies to both definitions of 'nature': 'essence' ("one's true nature") and 'the untouched world' ("force of nature"). Natural is often used meaning "good", "healthy", or "belonging to human nature". This use can be questioned, as many freely growing plants are poisonous, for example.

• Natural birth control, birth control methods that do not rely on any artifice of medical science
• Natural childbirth, childbirth with minimal medical intervention
• Natural family planning, contraceptive methods permitted by the Catholic Church
• Natural food movement, a diet emphasizing unprocessed food
• Natural footed, in surfing, left foot forward
• Natural History (disambiguation), for various works titled Natural History
• Natural Law Party, the political arm of the Transcendental Meditation movement
• United States Natural Law Party, a political arm of the Transcendental Meditation movement
• Иatural, an album by Japanese alternative rock group Orange Range
• Natural (S Club 7 song) is a song by British pop band S Club 7

Relating to the natural sciences:

• Natural abundance, in physics, the relative quantities of isotopes found in nature
• Natural capital, the naturally occurring resources in the earth's biosphere
• Natural disaster, such as earthquakes, hurricanes, etc
• Natural environment, an environment on earth or elsewhere not primarily of human creation
• Natural resource, naturally occurring commodities valued in their (relatively) unprocessed form
• Natural satellite, a moon or similar naturally occurring planetary satellite
• Natural selection, the elimination of maladapted individuals from biological populations (one of the foundations of the theory of evolution)
• Natural science, study of the non-human aspects of the world
• Natural units, in physics, a set of measurement units, originally proposed by Max Planck

Relating to the social sciences:

• Natural capitalism, a set of economic reforms to reward efficiency
• Natural history, a broad term for the study of living things
• Natural language, human language spoken natively, as opposed to purely constructed languages
• Natural monopoly, a monopoly persisting for fundamental economic reasons
• Natural semantic metalanguage, in linguistics, an approach to semantic analysis

Relating to the humanities:

• Natural law, in law or morals, system of justice conceived as independent of current political order
• Natural signs (♮), in music, are the notes A, B, C, D, E, F, and G, as opposed to sharps ( ♯ ) or flats ( ♭ )
• Natural theology, theology based on reason and experience
• Naturalism (philosophy), stances deriving from materialism and pragmatism

In mathematics and computer science:

• Natural deduction, a class of foundational approaches to proofs
• Natural language processing, in computer science, computer comprehension of human language
• Natural logarithm, in mathematics, logarithm to base e
• Natural number, in mathematics, numbers 1,2,3,...
• Natural transformation, in mathematics, a means of transforming functors in category theory

Natural | ナチュラル