* A misspelling: It might be a misspelling of a different word. Could you provide more context, like where you saw it or what it was referring to?
* A regional term: It might be a word specific to a particular region or language. If you can provide the language or origin, it might be easier to find its meaning.
* A made-up word: It's possible the word is entirely fictional or made up.
To help me understand, please tell me:
* Where did you see the word "kishana"? (e.g., a book, website, conversation)
* What was the context of the word? (e.g., what was being discussed?)
* Do you know what language the word might be from?
With more information, I can try to decipher the meaning of "kishana."