Dictionary is a book or electronic resource that lists the words of a language (typically in alphabetical order) and gives their meaning, or gives the equivalent words in a different language, often also providing information about pronunciation, origin, and usage.

With over 250 million speakers, Bengali is the seventh most spoken native language in the world due to their population. It has been influenced by other language families prevalent in South Asia, notably the Dravidian, the Austroasiatic, and the Tibeto-Burman families, all of which contributed to Bengali vocabulary and provided the language with some structural forms.

Bengali , also known by its endonym Bangla (বাংলা), is an Indo-Aryan language spoken in the Indian Subcontinent. It is the national and official language of the People's Republic of Bangladesh, and the official language of some eastern and north-eastern states of the Republic of India, including West Bengal, Tripura, Assam (Barak Valley) and Andaman and Nicobar Islands. It is also one of the 22 scheduled languages of India.

Dictionaries from the early 20th century attributed slightly more than half of the Bengali vocabulary to native words (i.e., naturally modified Sanskrit words, corrupted forms of Sanskrit words, and loanwords from non-Indo-European languages), about 30 percent to unmodified Sanskrit words, and the remainder to foreign words. Today, Bengali is the primary language spoken in Bangladesh and the second most widely spoken language in India.