Here are some possible explanations:
* Misspelling: It might be a misspelling of another Hawaiian word. Could it be "Kīlauea" (a volcano on the Big Island), "Kīholo" (a bay on the Big Island), or something else entirely?
* Place name: It could be a place name that isn't widely known. Many places in Hawaii have unique names, and some are not commonly found in dictionaries.
* Made-up word: It might be a word someone invented or a name that is not of Hawaiian origin.
To get a more accurate answer, you could provide more context about where you encountered the word "Kilohana."