This is the 5057th most frequent Turkish word.
güvenini
"Your trust" or "his/her trust."
In this sentence, 'güvenini' (trust) refers to someone's trust that is earned.
Arkadaşının güvenini kazandın.
You have earned your friend's trust.
Here, 'güvenini' signifies the trust of others that is lost due to actions or decisions.
O kararın ile herkesin güvenini kaybettin.
With that decision, you lost everyone's trust.
In this example, 'güvenini' denotes another person's trust that the speaker intends to uphold.