سعید

In a sentence

• سعید در پارک قدم می‌زند.

  Saeed is walking in the park.

  Here, 'سعید' is used as a proper noun, referring to a person's name.

• این کتابی است که سعید به من داده است.

  This is the book that Saeed gave me.

  In this sentence, 'سعید' refers to the person who performed the action of giving, used as a subject.

• نام پدر سعید است.

  The father's name is Saeed.

  Here, 'سعید' denotes the name of the father, identifying him.