Longevity

n.resilient, hopefulprofessional

What it means

The capacity to remain alive, effective, or useful for a long time.

Reach for it when discussing extended life while naming whether the subject is a person, material, product, or institution

Replaceable bearings greatly improved the wind turbine's longevity.

playful
staying power
appeal or influence persists in an informal account
not when Staying power is conversational and may describe popularity rather than function.
everyday
long life
plain wording suits a person or living thing
not when Long life is awkward for a method, agreement, or component.
warm
endurance
continued performance through strain is admired
not when Endurance describes bearing difficulty, not the total span of life.
professional
durability
an object withstands wear and damage
not when Durability concerns resistance, while longevity measures how long usefulness actually lasts.
professional
lifespan
the expected or observed duration can be measured
not when Lifespan states the interval and not the quality that enables it.
professional
service life
engineering guidance needs the useful operating period
not when Service life applies to equipment and materials, not organisms or cultural work.
formal
persistence
a state or effect continues over time
not when Persistence may be unwelcome and does not imply health or usefulness.

increase longevity
Regular lubrication can increase longevity without changing the motor's output.
healthy longevity
The study measures healthy longevity rather than survival alone.
product longevity
Product longevity depends on repair access as well as strong materials.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.