The language of Bangladesh is BENGALI, which is a 7-letter word. BENGALI is an Indo-Aryan language spoken by the majority of the population in Bangladesh and parts of India. It is the official language of Bangladesh and one of the 23 official languages of India. It is also the second most spoken language in India after Hindi. BENGALI has its own script and is written from left to right. It is the sixth most spoken language in the world with over 250 million native speakers.