The word "onley" is not a correct spelling in English. The closest word to "onley" is "only" /ˈoʊnli/. The correct spelling has an "l" after the "n" and a "y" at the end, resulting in "only." This word is used to indicate that there is just one option, possibility, or answer. Remember to double-check your spelling to avoid confusion or misunderstandings in communication.