This is the 655th most frequent Persian word.
اعتماد
Trust; confidence.
Here, the word "اعتماد" indicates a feeling of trust or faith that the speaker has in their close friend.
من به دوست صمیمیم اعتماد دارم.
I trust my close friend.
In this sentence, "اعتماد" refers to the collective feeling of trust or reliance that the public has towards the government.
اعتماد مردم به دولت به مرور کاهش یافته است.
People's trust in the government has gradually decreased.
Here, "اعتماد" is used as part of the phrase "اعتماد به نفس," meaning self-confidence or self-reliance, thus referring to trust in oneself.