* It's a misspelling: Perhaps you meant a different word with a similar spelling, like "chronic" or "chthonic".
* It's a niche term: It could be a specialized term in a particular field, like science, medicine, or a specific hobby.
* It's a made-up word: The word might be a fictional term from a book, movie, or other creative work.
To help me understand what you meant, could you provide more context? For example:
* Where did you encounter this word?
* What was the surrounding text or conversation?
* What is the topic you are interested in?
With more information, I can try to help you figure out the meaning of "chyonie."