This is the 384th most frequent Arabic word.
رسالة
"رسالة" means "message" or "letter" in English.
In this usage, 'رسالة' refers to a written letter or message sent to a friend.
كتبت رسالة إلى صديقي.
I wrote a letter to my friend.
Here, 'رسالة' means a message, ideology, or purpose aimed at communicating values or ideas.
هدفي في هذه الحياة هو إيصال رسالة حب وسلام.
My goal in this life is to deliver a message of love and peace.
In this context, 'رسالة' pertains to a formal thesis or dissertation prepared for academic purposes.