The term 'Emperor, for example' can be summarized by the crossword solution 'RULER, ' which is a five-letter word. An emperor is a type of RULER who holds supreme power over an empire or dominion. Historically, emperors have been associated with absolute rule and have often been seen as divinely appointed. In modern times, the title of emperor is still used in some countries, such as Japan, where the Emperor is the head of state.