One whose occupation is to assist in the management of ships at sea; a mariner; a sailor; -- applied both to officers and common mariners, but especially to the latter. Opposed to landman, or landsman.
It's extremely difficult to get these jobs because you can't get a job on a ship unless you have seaman's paper's, and you can't get seaman's papers unless you have a job on a ship. There had to be a way to break through the circle, and he was the one who arranged it for me. Paul Auster
I sum up the prospects for 1967 in three short sentences. We are back on course. The ship is picking up speed. The economy is moving. Every seaman knows the command at such a moment: 'steady as she goes'. James Callaghan