* It's a misspelling: Perhaps you meant a different word, like "tanvi" or "tanvi."
* It's a name: "Tanvi" could be a name, possibly derived from Sanskrit or another language.
* It's a newly coined word: In some cases, people create new words or use existing words in new ways, and "tanvi" might be one of these.
To get a better understanding, please provide more context:
* Where did you encounter this word? (Book, conversation, etc.)
* What was the sentence or phrase it was used in?
With more information, I can help you find the correct meaning.