vital

As a noun grave

is cave, den, lair.

As an adjective vital is

relating to, or characteristic of life.

As an adjective vital is

relating to, or characteristic of life.

As a noun principle

is a fundamental assumption.

As a verb principle

is to equip with principles; to establish, or fix, in certain principles; to impress with any tenet or rule of conduct.

As an adjective vital is

relating to, or characteristic of life.

As adjectives the difference between energetic and vital

is that energetic is possessing, exerting, or displaying energy while vital is relating to, or characteristic of life.

As adjectives the difference between vital and vitalic

is that vital is relating to, or characteristic of life while vitalic is pertaining to life; vital.

As an adjective vital

is relating to, or characteristic of life.

As a noun parabiosis is

(physiology) the (natural or surgical) union of parts of two organisms, especially in such a way as to cause them to share their vascular systems) organisms so joined then are called parabionts).

As an adjective vital

is relating to, or characteristic of life.

As a noun biodynamics is

biodynamic agricultural practices.

As an adjective vital

is relating to, or characteristic of life.

As a noun lebensraum is

(chiefly|with reference to nations and peoples) hitherto unoccupied “living space” claimed as one’s rightful domain.

As adjectives the difference between vital and nonvital

is that vital is relating to, or characteristic of life while nonvital is not vital in various senses; thus, often not essential for life.