longevity Meaning, Definition & Usage

  1. noun duration of service
    length of service.
    • her longevity as a star
    • had unusual longevity in the company
  2. noun the property of being long-lived
    seniority.

WordNet

Lon*gev"i*ty noun
Etymology
L. longaevitas. See Longevous.
Definitions
  1. Long duration of life; length of life.
    The instances of longevity are chiefly amongst the abstemious. Arbuthnot.

Webster 1913