This is the 298th most frequent Indonesian word.
ahmad
"Ahmad" is an Indonesian male given name of Arabic origin, meaning "most praiseworthy."
Here, 'Ahmad' is used as a proper noun, identifying a specific person named Ahmad engaged in the activity of studying.
Ahmad sedang belajar di perpustakaan.
Ahmad is studying at the library.
In this sentence, 'Ahmad' serves as a proper noun referenced as the owner of the book.
Buku ini milik Ahmad.
This book belongs to Ahmad.
'Ahmad' here is used vocatively to directly address the person being spoken to.