This is the 913th most frequent Persian word.
پیامی
Message
In this sentence, 'پیامی' is used as a noun meaning 'a message,' specifically referring to a communication from one person to another.
او پیامی از طرف دوستش دریافت کرد.
She received a message from her friend.
Here, 'پیامی' is referring to a piece of communication, emphasized with the relative clause 'که فرستادی' to specify which message.
پیامی که فرستادی تاثیرگذار بود.
The message you sent was impactful.
'پیامی' here functions as the object of the intent to communicate, representing a message as the item being sent.