This is the 8714th most frequent Russian word.
пенсионерка
A female pensioner.
In this sentence, 'пенсионерка' refers to an elderly woman who has retired and is receiving a pension.
Моя бабушка — пенсионерка.
My grandmother is a retiree.
Here, 'пенсионерка' is used as part of a plural construction, 'пенсионеров и пенсионерок,' to specifically refer to female retirees.
В магазине скидки для пенсионеров и пенсионерок.
There are discounts in the store for retired men and women.
In this case, 'пенсионерка' describes the woman who has transitioned into retirement.