Çavuş
Çavuş, also anglicized Chaush and Chiaus (from Turkish: çavuş / چاوش; Arabic: شاويش, romanized: shawish; from Old Turkic Çabuş or Çawuş, "person who gives order or yells") was an Ottoman title used for two separate soldier professions, both acting as messengers although differing in levels. It was a rank below agha and kethüda (from Persian, kad-khuda, "magistrate"), in units such as the Janissaries and Sipahi, and was also a term for members of the specialized unit of çavuşān (چاوشان, also çavuşiyye, çavuş(an)-i divan(i)) consisting of combined cavalry and infantry serving the Imperial Council (as in Ottoman Egypt).