lifetime

The period of time during which an individual is alive.

The period of time during which property, an object, a process, or a phenomenon exists or functions.

Continuing for a lifetime; lifelong.

Occurring or measured over a person’s active career.

The time that one’s life continues; duration of life.

The time that life continues.

The duration of the life of someone or something.

A long period of time.

the period during which something is functional (as between birth and death)

the period during which something is functional (as between birth and death)