This is the 11729th most frequent Polish word.
koniecznością
"Necessity."
Here, "koniecznością" is used to portray the state or condition of necessity as a requirement or inevitability.
Życie bez wiedzy jest koniecznością dla tych, którzy nie chcą się rozwijać.
Life without knowledge is a necessity for those who do not want to develop themselves.
In this instance, "koniecznością" refers to avoiding certain situations or actions being perceived or treated as necessary by someone.
Unikanie trudnych decyzji było dla niego koniecznością.
Avoiding tough decisions was a necessity for him.
In this sentence, "koniecznością" is used as a noun in the instrumental case to express the fact that buying a new computer is deemed necessary.