| (of a parent or child) related by blood; genetically related | conforming with or constituting a norm or standard or level or type or social norm; not abnormal |
| in accordance with nature; relating to or concerning nature | in accordance with scientific laws |
| existing in or produced by nature; not artificial or imitation | being approximately average or within certain limits in e.g. intelligence and development |
| existing in or in conformity with nature or the observable world; neither supernatural nor magical | forming a right angle |
| (of a musical note) being neither raised nor lowered by one chromatic semitone | |
| being talented through inherited qualities | |
| functioning or occurring in a normal way; lacking abnormalities or deficiencies | |
| unthinking; prompted by (or as if by) instinct | |
| free from artificiality | |
| (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes | |