mizzen          
noun [ C ]  sailing specialized uk/ˈmɪz.ən/ /ˈmɪz.ən/ (also mizzen mast, mizzenmast, /ˈmɪz.ənˌmɑːst/ /ˈmɪz.ənˌmæst/)
 (also mizzen mast, mizzenmast)(船的)后桅 
the mast (= a tall pole that supports the sails) in front of a ship's mainmast (= the tallest and most important mast)
  The boat has a square sail on the mainmast and a triangular sail on the mizzen. 船的主桅上有一张方形的帆,后桅上有一张三角形的帆。 
 There was no mistaking the skull and crossbones on the ship's mizzen mast. 船后桅上的骷髅图是不会看错的。 
  (船)后桅上的帆
a sail on the mizzen mast of a ship
  Hoist the mizzen! 升起后桅帆! 
 - More examples
 - She is square-rigged with three masts - fore, main and mizzen.
 - We had a signal for medical assistance flying on the mizzen.
 - Carpenters are working earnestly to repair a damaged mizzen mast.
 - The design, with its distinctive mizzen mast and sail, was used first as a fishing or crabbing boat.
 - Soon the ship's mizzenmast was shot away, its hull was riddled, and its spar and rigging were reduced to wreckage.
 - A shot fired by a French marksman from the mizzenmast of the Redoutable tore through Nelson's left shoulder.
 - Sailing a 17th-century ship is a labour-intensive affair; a half-dozen crew members were needed just to set and adjust the mizzen, a small sail aft.