The whole lifespan or period of existence of any person, animal, or thing; the ordinary or expected duration of life. Now rare.

The term of duration of an inanimate thing; the time that a manufactured object lasts or is usable. Cf. long-life, adj., shelf life n. at shelf, n.1…

The duration of something's existence or usefulness; = life, n. 10a.

Of a thing, activity, etc.: long duration of existence; (also) the period of existence or functionality.

a lifetime; the period of existence or duration (of an animate or inanimate thing).

In extended use: the length of time for which something remains operational, viable, serviceable, etc.