This is the 342nd most frequent Turkish word.
hdp
HDP: Peoples' Democratic Party, a pro-Kurdish and left-wing political party in Turkey.
In this sentence, 'HDP' refers to the political party Peoples' Democratic Party.
HDP'nin son toplantısı basında geniş yer buldu.
The latest meeting of the HDP received extensive coverage in the press.
Here, 'HDP' is used as the topic or subject of the book, denoting the political entity.
Arkadaşım, HDP hakkında bir kitap yazmaya hazırlanıyor.
My friend is preparing to write a book about HDP.
In this case, 'HDP' refers directly to the political organization involved in the electoral process.