This is the 6756th most frequent Dutch word.
youssef
The Dutch word "Youssef" is a proper noun, typically used as a masculine given name equivalent to "Joseph" in English.
In this sentence, the word 'Youssef' is used as a proper noun, referring directly to a specific person and fulfilling the role of the subject of the sentence.
Youssef is mijn beste vriend.
Youssef is my best friend.
Here, 'Youssef' functions as a proper noun serving as the object of the verb 'zag' (saw), indicating the person the action is directed toward.
Ik zag Youssef gisteren in het park.
I saw Youssef in the park yesterday.
In this case, the word 'Youssef' is part of a possessive form ('Youssef's'), denoting ownership of the ideas being discussed in the sentence.