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

  • noun Long life; great duration of life.
  • noun Length or duration of life or viability.
  • noun Long duration or continuance, as in an occupation.

from The Century Dictionary.

  • noun Long life; unusually prolonged life or existence.
  • noun Length or duration of life; term of existence: as, statistics of longevity; the average longevity of the race.

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

  • noun Long duration of life; length of life.

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

  • noun The quality of being long-lasting, especially of life

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

  • noun the property of being long-lived
  • noun duration of service


from The American Heritage® Dictionary of the English Language, 4th Edition

[Late Latin longaevitās, from Latin longaevus, ancient : longus, long; see del- in Indo-European roots + aevum, age; see aiw- in Indo-European roots.]


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