North Dravidian refers to a group of languages spoken in the northern region of the Dravidian language family. Some synonyms that can be used interchangeably with North Dravidian are Proto-Dravidian, Northern Dravidian and Brahui. Proto-Dravidian refers to the hypothetical ancestral language from which all the Dravidian languages evolved. Northern Dravidian is a broad term used to describe the Dravidian languages spoken in the northern part of the Indian subcontinent, while Brahui is a language spoken in the Balochistan province of Pakistan and is considered by some linguists to be a North Dravidian language. These synonyms highlight the linguistic diversity of the Dravidian language family.