baron vs sultan

baron

noun
  • The male ruler of a barony. 

  • A male member of the lowest rank of English nobility (the equivalent rank in Scotland is lord). 

  • A person of great power in society, especially in business and politics. 

  • A prisoner who gains power and influence by lending or selling goods such as tobacco. 

  • Any of various nymphalid butterflies of the genus Euthalia. 

  • A baron of beef, a cut made up of a double sirloin. 

sultan

noun
  • The holder of a secular office, formally subordinate to, but de facto the power behind the throne of, the caliph. 

  • A hereditary ruler in various Muslim states (sultanate), varying from petty principalities (as in Yemen), often vassal of a greater ruler, to independent realms, such as Oman, Brunei, Morocco (until 1956) or an empire such as the Turkish Ottoman Empire. 

  • A breed of chicken originating in Turkey, kept primarily in gardens for ornamental reasons. See: sultan (chicken) 

  • A variant of solitaire, played with two decks of cards. 

How often have the words baron and sultan occurred in a corpus of books? (source: Google Ngram Viewer )