Subcontinent
Subcontinent is a term used in geography and cultural contexts to refer to a large landmass that forms a distinct part of a continent but is separated by geography, climate, and cultural-historical factors. It is not a formal geological term.
The most widely cited example is the Indian subcontinent, which comprises the lands of the modern states
Geologically, the Indian subcontinent originated on the Indian Plate, which broke away from Africa and Gondwana
Historically and culturally, the subcontinent is the cradle of ancient civilizations, such as the Indus Valley