longevity

1. Duration of service (synset 105058885)
   "her longevity as a star"; "had unusual longevity in the company"
   is a type of: longness - duration as an extension
   same as: length of service
2. The property of being long-lived (synset 104935067)
   is a type of: oldness - the opposite of youngness
   same as: seniority

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