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lifetime

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(-tīm′)

noun

the period of time that someone lives, or that something lasts, functions, or is in effect
a very long time: made to last a lifetime

adjective

lasting for such a period: a lifetime job

See lifetime in American Heritage Dictionary 4

noun

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.

adjective

Continuing for a lifetime; lifelong.
Occurring or measured over a person's active career: a lifetime batting average.

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