This is the 14592nd most frequent Polish word.
przyjaźni
"Przyjaźni" means "friendship" in English.
Here, "przyjaźni" is the plural form in genitive case, used to denote relationships of friendship.
Cenię ludzi, którzy dbają o przyjaźni.
I value people who care about friendships.
"przyjaźni" is used in this sentence in singular form in the genitive case to express absence or lack.
Bez przyjaźni życie byłoby smutne i samotne.
Without friendship, life would be sad and lonely.
In this sentence, "przyjaźni" is used in the dative case, indicating the tool or means by which something is achieved.