General "index" meaning (a list of items):
* सूचकांक (soochank): This is the most common and widely used term.
* सूची (soochi): This means "list" and can also be used for "index."
* अनुक्रमणिका (anukramanika): This is more formal and specific to a book's index.
Specific "index" meanings:
* सूचकांक (soochank): This also means "index" in the sense of a numerical measure like a stock market index.
* दर्शाक (darshak): This means "indicator" and can be used for an index that points to something.
Other possible translations:
* प्रतीक (pratik): This means "symbol" and could work if the index acts as a symbol for something.
* निर्देशिका (nirdeshika): This means "directory" and could be used for an index that directs to information.
The best translation depends on the specific context.
It's always a good idea to consider the full meaning of the English word "index" and choose the Hindi word that best fits that meaning.