1. 
   sea-duty
   [n] - naval service aboard a ship at sea
   Found op http://www.webdictionary.co.uk/definition.php?query=sea-duty
   
   
2. 
   sea-duty
   service abroad noun naval service aboard a ship at sea
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=sea-duty
   
   
3. 
   seaduty
   1) Sailor's stint
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/seaduty/1
   
   

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