A subcontinent is a large land mass forming a distinct part of a continent. The Indian subcontinent, across the subcontinent, subcontinental climate.
In practice the word almost always means India, Pakistan, Bangladesh and their neighbours. The claim inside it is geological as well as political, since that block really did arrive as a separate plate.
1nounsubcontinentA large land mass forming part of a continent.
“The monsoon reaches the subcontinent in early June.”
subcontinent is a land mass.
Sub-, under or below, plus continent: a division ranking below a continent.
Proto-Indo-European
*ten-
Latin
continens
English
continent
English, today
subcontinent
Built from
From sub + continent. continent Borrowed from Latin continens, noun use of present participle of contineo (“to contain”).
Etymology from Wiktionary, CC BY-SA