longevity
/lɒnˈd͡ʒɛv.ɪ.ti/
Proposed by a contributor, not yet supported by evidence.
Also seen as: longevities
Sense 1
Meaning · English
The quality of being long-lasting, especially of life.
Noun
Examples
Grandpa had incredible longevity: he lived to be 105 years old!
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Duration over time; persistence.
Noun
Examples
A ‘postdating’ is an example of the use of a lexical item at a later date than currently recorded and these are important in establishing the longevity of use of a term and whether or not it has become obsolete.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “longevity” mean?
The quality of being long-lasting, especially of life.
Is “longevity” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.