subcontinent

Short definition from Wiktionary

Noun

1. 1
   A large landmass which is either smaller than a continent (such as Greenland), or part of an even larger continent (such as the Indian subcontinent).

Proper noun

1. 1
   The Indian subcontinent, South Asia.
2. 2
   Alternative letter-case form of subcontinent (“the Indian subcontinent”).