1.Definition: (of a musical note) being neither raised nor lowered by one chromatic semitone
"A natural scale", "B natural"
2.Definition: (of a parent or child) related by blood; genetically related
3.Definition: (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
"Natural yogurt", "Natural produce"
4.Definition: being talented through inherited qualities
"A natural leader"
5.Definition: existing in or in conformity with nature or the observable world; neither supernatural nor magical
"A perfectly natural explanation"
6.Definition: existing in or produced by nature; not artificial or imitation
"A natural pearl", "Natural gas", "Natural silk", "Natural blonde hair", "A natural sweetener", "Natural fertilizers"
7.Definition: free from artificiality
"A natural reaction"
8.Definition: functioning or occurring in a normal way; lacking abnormalities or deficiencies
"It's the natural thing to happen", "Natural immunity", "A grandparent's natural affection for a grandchild"
9.Definition: in accordance with nature; relating to or concerning nature
"A very natural development", "Our natural environment", "Natural science", "Natural resources", "Natural cliffs", "Natural phenomena"
10.Definition: unthinking; prompted by (or as if by) instinct
"A cat's natural aversion to water"