Pakistan Language 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. Urdu is written in the Perso-Arabic script and is closely related to Hindi. It is also the lingua franca of the Subcontinent and is widely used in literature, poetry, films, and music.