This is the 14575th most frequent Russian word.
пенсий
"Пенсий" is the plural form of "пенсия," meaning "pensions" in English.
The word "пенсию" is used in its singular accusative form, indicating the object (pension) being received by the subject.
Моя бабушка получает хорошую пенсию.
My grandmother receives a good pension.
Here, "пенсий" is in its plural genitive form, used to describe reforms affecting pensions collectively.
В нашей стране обсуждают реформы пенсий.
In our country, pension reforms are being discussed.
In this sentence, "пенсий" is also in the plural genitive case, indicating the attribute (size) being discussed regarding pensions.