This is the 1561st most frequent Polish word.
drużynie
"Team" (dative or locative form).
In this sentence, 'drużynie' is in the feminine dative singular form and is used to describe the team one is a part of.
Jestem w najlepszej drużynie w lidze.
I am on the best team in the league.
Here, 'drużynie' is again in the dative case, showing to whom help is being extended.
Pomagamy naszej drużynie wygrać mecz.
We are helping our team to win the game.
In this example, 'drużynie' is in the dative case, indicating the recipient of the gratitude.