The Size Hierarchy of a Landmass?

Question

If we judge a hierarchy of a landmass by size, here is what, in my knowledge, it would have looked like, from largest to smallest: Continent Subcontinent ??? Island Islet In regards to size, is there a transition of landmasses between (sub)continent and island?

Answer 1

No, because a subcontinent isn't defined by size. The reason India is considered a subcontinent is because it lays on its own tectonic plate. An island can be any size, on any plate, connected to any continent. Greenland is the largest island on Earth, but it's not a subcontinent because it's on the North American plate.