(Britain) A buoyant object (most commonly torus-shaped) that is used as a life-saving device by keeping a person afloat. / (Britain, metaphoric) Something that rescues one from difficulties.

The time that a battery lasts

A kind of tree, the arborvitae. / (biology) A metaphor used to describe the relationships between organisms, both living and extinct, usually represented with a tree-like diagram.

A watertight boat or box, travelling on a line from a wrecked vessel to the shore, and used to haul people through the waves.

Cudweed (Gnaphalium uliginosum). / Hylotelephium telephium, a succulent perennial ground cover native to Eurasia.

A school for artists in which they model, paint, or draw from living models.

Alternative spelling of afterlife.

plural of life insurance

Having a positive and uplifting effect. / Appearing to have an optimistic quality.

The natural cycle of procreation, birth, life, death and predation.