This is the 11280th most frequent Polish word.
harcerskiej
The word "harcerskiej" is the genitive or dative singular feminine form of "harcerski," meaning "scout" or "scouting" (related to scouting or Boy/Girl Scouts).
The word "harcerskiej" is used as an adjective, describing "drużyny" (team) and indicating that it pertains to scouts.
Członkowie drużyny harcerskiej zdobyli odznakę za działania społeczne.
Members of the scouting team earned a badge for community actions.
Here, "harcerskiej" functions as an adjective qualifying "grupy" (group), specifying that the group has connections to the scouts.
Wycieczka harcerskiej grupy do lasu była pełna przygód.
The trip of the scouting group to the forest was full of adventures.
In this sentence, "harcerskiej" serves as an adjective modifying "organizacji" (organization), reflecting its association with scouting.