If you're struggling with the misspelling "Rivoker", there are a few possible correct suggestions that you could consider. It might be a typo for "Revoker", a term meaning to revoke or withdraw something. Alternatively, it could be a misspelling of "Revoker", which refers to a person or thing that revokes or cancels. Taking these possibilities into account may help you find the correct word you were intending to write.