This is the 1991st most frequent Polish word.
dziewczynka
"Girl" (a young female child).
Here, 'dziewczynka' refers to a young female child performing an action.
Dziewczynka bawi się na placu zabaw.
The little girl is playing on the playground.
In this sentence, 'dziewczynką' is used in the accusative case to refer to a young female child as the object of a query.
Czy widziałeś tę dziewczynkę?
Have you seen that little girl?
Here, 'dziewczynkę' is used in the accusative case with an adjective modifying it, conveying a positive quality about a young female child.