Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The period of time during which an individual is alive.
  • noun The period of time during which property, an object, a process, or a phenomenon exists or functions.
  • adjective Continuing for a lifetime; lifelong.
  • adjective Occurring or measured over a person's active career.

from The Century Dictionary.

  • noun The time that one's life continues; duration of life.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The time that life continues.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The duration of the life of someone or something.
  • noun informal, hyperbolic A long period of time.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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

Etymologies

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Examples

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