B2 noun /ˈmeɪnˌlænd/
mainland
मुख्य भूमि
Meaning
the principal landmass of a country or continent, as opposed to the surrounding islands
Example
The mainland of Australia is home to most of its population.
ऑस्ट्रेलिया की मुख्य भूमि में उसकी अधिकांश आबादी रहती है।