This is the 579th most frequent Persian word.
سعید
The Persian word "سعید" means "happy" or "blessed."
Here, 'سعید' is used as a proper noun, referring to a person's name.
سعید در پارک قدم میزند.
Saeed is walking in the park.
In this sentence, 'سعید' refers to the person who performed the action of giving, used as a subject.
این کتابی است که سعید به من داده است.
This is the book that Saeed gave me.
Here, 'سعید' denotes the name of the father, identifying him.