A Petty Officer is a non-commissioned officer in the United States Navy, Coast Guard, and NOAA Commissioned Officer Corps. The four crossword solutions for the term Petty Officer are BOSN (4 letters), BOSUN (5 letters), YEOMAN (6 letters), QUARTERMASTER (13 letters), and BOATSWAINSMATE (14 letters). BOSN stands for Boatswain's Mate, which is a Petty Officer responsible for the maintenance of the ship's deck and its equipment. BOSUN is an abbreviation for Boatswain, which is a Petty Officer in charge of the crew and equipment on board a ship. YEOMAN is an abbreviation for YEOMAN, which is a Petty Officer who performs administrative duties. QUARTERMASTER is an abbreviation for Quartermaster, which is a Petty Officer responsible for navigation and the operation of the ship's helm. BOATSWAINSMATE is an abbreviation for Boatswainsmate, which is a Petty Officer responsible for the maintenance of the ship's deck and its equipment.