* A misspelling of "styles": This is the most likely scenario, meaning different ways of doing something or different types of something.
* A foreign word: It might be a word from another language, such as Greek or Spanish. If you provide more context, I might be able to help you understand the specific meaning.
* A proper noun: It could be a name of a person, place, or thing.
Please provide more context about where you encountered the word "stylos" so I can give you a more accurate answer.