The language of Pakistan is Urdu, which is a 4-letter word. Urdu is an Indo-Aryan language spoken by over 100 million people in Pakistan and India. It is the official language of Pakistan and is also one of the 22 official languages of India. It is written in the Perso-Arabic script and is closely related to Hindi. Urdu has been heavily influenced by Persian, Arabic, and Turkish, and is considered to be one of the most beautiful languages in the world.