Bikol (Bicolano) is spoken mostly in the Bicol Peninsula of the Phillipines in the southeastern part of Luzon, the neighboring island-province of Catanduanes, and the island of Burias in Masbate. There are 2.5 million speakers of closely related languages which are generally mutually intelligible.
Central Bikol features some vocabulary not found in other Bikol languages nor in other members of the Central Philippine language family like Tagalog and Cebuano. There is no formal study on the relationship of the Central Luzon languages to Central Bikol but the latter has several words that are also found in the archaic form of Tagalog spoken in the Rizal and Quezon provinces.