This is the 1856th most frequent Polish word.
indiach
"Indiach" means "India" in the locative case in Polish.
Here, the word 'Indiach' is in the locative case, used to indicate a location (in India).
W Indiach żyje ponad miliard ludzi.
In India, over a billion people live.
In this sentence, 'Indiach' is again in the locative case, used to emphasize the place of stay.
Marzę o podróży do Indii, ale najpierw muszę zaoszczędzić pieniądze na pobyt w Indiach.
I dream of traveling to India, but first I need to save money for staying in India.
The word 'Indiach' in this context denotes the location where the monsoon season is observed.