1) Bosun 2) Roustabout 1) Jack 2) Jack-tar 3) Low-ranking sailor 4) Mariner 5) Old salt 6) One who cleans the poop 7) Roustabout 8) Sailor 9) Sea dog 10) Seafarer 11) Seaman 12) Swab 13) Worker on the ship 
Seaman who works on the deck of a ship and remains in the wheelhouse attending to the orders of the duty officers during navigation and manoeuvring.
A person working on a ship, sometimes shortened to 
Seaman who works on the deck of a ship and remains in the wheelhouse attending to the orders of the duty officers during navigation and manoeuvering. He also comes under the direct orders of the bosun.
[n] - a member of a ship`s crew who performs manual labor
roustabout noun a member of a ship`s crew who performs manual labor