This is the 131st most frequent Bulgarian word.
аз
"I."
In this sentence, 'аз' is a pronoun meaning 'I', used as the subject of the sentence to indicate the person who is a student.
Аз съм студент.
I am a student.
Here, 'аз' remains a pronoun for 'I', emphasizing the subject who loves the activity of reading books.
Аз обичам да чета книги.
I love to read books.
In this usage, 'аз' is still a pronoun for 'I', showing part of a compound subject 'You and I' to indicate the people who will go to the cinema.