Origin: Latin prefix sub-
Subcontinent has 4 different meanings across 2 categories:
a large and distinctive landmass (as India or Greenland) that is a distinct part of some continent
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).
The Indian subcontinent, South Asia.
Alternative letter-case form of subcontinent (“the Indian subcontinent”)