This is the 3027th most frequent Polish word.
pełnej
The Polish word "pełnej" means "full" or "complete" in the genitive or locative singular feminine form.
In this sentence, 'pełnej' describes the quantity adjective 'full', used here in the genitive case to agree with 'kieszeni'.
Ona ma pełnej kieszeni.
She has a full pocket.
Here, 'pełnej' operates in the instrumental case to qualify 'siły', indicating full commitment.
Zawsze pracuje z pełnej siły.
She always works with full strength.
In this case, 'pełnej' in genitive describes 'informacji', suggesting the completeness of the information.