This is the 3818th most frequent German word.
schwestern
"Sisters" (plural form of "Schwester" meaning sister).
Here, 'Schwestern' functions as a noun to denote siblings of the female gender.
Ich habe zwei Schwestern, die in Berlin wohnen.
I have two sisters who live in Berlin.
In this case, 'Schwestern' refers to a group of female siblings collaborating or interacting.
Die Schwestern helfen einander bei den Hausaufgaben.
The sisters help each other with the homework.
Here, 'Schwestern' is part of the compound noun 'Krankenschwestern' (nurses), referring to professionals in healthcare.