* A misspelling: Perhaps you meant "vivis" as a misspelling of a word like "vivas" (meaning cheers or hurrahs), "vivisect" (meaning to dissect a living animal for scientific research), or "vives" (a rare word meaning "life" or "lives").
* A foreign word: It's possible "vivis" is a word from another language. If you can provide more context, like where you encountered the word, I might be able to help you translate it.
* A slang term: "Vivis" could be a slang word, possibly regional or specific to a certain group.
Please provide more information so I can give you a more precise answer!