Possible scenarios:
* Misspelling: Perhaps you meant a different word, like "chinas" (referring to the country) or "cinas" (a rare word for a kind of fabric).
* Foreign Language: "Ciunas" could be a word in another language. Please provide more context, like what language you're thinking of, or the sentence where you encountered it.
Could you please provide more information so I can help you understand the meaning of "ciunas"?