The belief in or practice of going nude in social settings, often in mixed-gender groups, specifically either in cultures where this is not the norm or for health reasons.

In a natural manner. / Inherently or by nature. / Surely or without any doubt.

plural of nature

Third-person singular simple present indicative form of nature

A state of nature; conformity to nature. / The doctrine that denies a supernatural agency in the miracles and revelations recorded in religious texts and in spiritual influences.

The state or quality of being natural. / Of a picture or recording, likeness to the original.

present participle of naturalize

The action of naturalizing somebody; act of granting citizenship. / The admission or adoption of foreign words or customs into general use.

plural of natural

(in combination) Having or possessing the specified disposition or temperament.