This is the 8789th most frequent Spanish word.
sundarbans
The word "Sundarbans" is not Spanish; it refers to a mangrove forest region in Bangladesh and India.
Here, 'Sundarbans' refers to the proper noun of a geographic location, emphasizing its identification as a place name.
Los Sundarbans en la India son conocidos por su biodiversidad única.
The Sundarbans in India are known for their unique biodiversity.
In this context, 'Sundarbans' is again used as a proper noun, forming the object of the research and highlighting it in an educational sense.
Investigué sobre los Sundarbans para aprender sobre su ecosistema.
I researched the Sundarbans to learn about their ecosystem.
In this example, 'Sundarbans' serves as the location for an activity, reflecting its usage to denote where an action takes place.