In as much as there is a strict definition of emperor, it is that an emperor has no relations implying the superiority of any other ruler and typically rules over more than one nation.
A dar togdah afissil n awa s itawan emperor, awen imos as emperor war ila a osaghan harat id tijra n amanokal iyyan fuk tolas exkam fal a ojjaran addawlat iyyat.