This is the 3178th most frequent Turkish word.
ekibine
"To your team."
In this sentence, 'ekibine' means 'to your team' and is used as a dative case form of 'ekip' (team) with the second person singular possessive suffix.
Senin ekibine katılmak istiyorum.
I want to join your team.
Here, 'ekibine' denotes 'to his/her team' by combining 'ekip' with the third person singular possessive suffix and the dative ending.
Onun ekibine yeni bir insan katıldı.
A new person joined their team.
In this instance, 'ekibine' means 'to your team' and implies trust directed towards it, showing both possession and direction.