ста́рость

uncommon #5005C1nounfeminineinanimateuncountablenoun in -ь

1.
old age, agedness, senescence
В ста́рости он стал Споко́йнее.
In old age he became calmer.
"Senescence" and "agedness" are formal or technical; "old age" is the everyday equivalent.

Examples

Ста́рость не ра́дость.
Old age isn't pleasant.
У дедушки началась подагра в старости
Grandpa developed gout in his old age.
Он отложи́л де́ньги на ста́рость.
He saved money for his old age.
Том у́мер от ста́рости.
Tom died of old age.
Он у́мер в про́шлом году от ста́рости.
He died last year of old age.
Я откла́дываю де́ньги на ста́рость.
I'm saving money for my old age.
Правитель, властвовавший над страной, умер в старости.
The ruler who had governed the country died in old age.
Веревка, рассучивающаяся от старости, теряла прочность.
The rope, coming untwisted with age, was losing its strength.

This noun exists in singular form only.