noun a notation cancelling a previous sharp or flat
adjective in accordance with nature; relating to or concerning nature
adjective existing in or produced by nature; not artificial or imitation
adjective existing in or in conformity with nature or the observable world; neither supernatural nor magical
adjective functioning or occurring in a normal way; lacking abnormalities or deficiencies
adjective (of a musical note) being neither raised nor lowered by one chromatic semitone
adjective (of a parent or child) related by blood; genetically related
adjective (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
Source: WordNet 3.1, Princeton University
