The way things are, the totality of all things in the physical universe and their order, especially the physical world in contrast to spiritual realms and flora and fauna as distinct from human conventions, art, and technology.
Spontaneous love, affection, or reverence, especially between parent and child.
The essential or innate characteristics of a person or thing which will always tend to manifest, especially in contrast to specific contexts, reason, religious duty, upbringing, and personal pretense or effort.
The need to urinate and defecate.
The distinguishing characteristic of a person or thing, understood as its general class, sort, type, etc.
Sexual desire.
The vital functions or strength of someone or something, especially (now dialect) as requiring nourishment or careful maintenance or (medicine) as a force of regeneration without special treatment.
Animals, plants, and fungi, not normally domesticated, often to the exclusion of plants, fungi, fish, insects and other invertebrates, and microscopic plants and animals; hence
Wild animals (especially to the exclusion of fish).
Members of a college fraternity