mar ‧ lin /ˈmɑːlən, ˈmɑːlɪn $ ˈmɑːr-/ BrE AmE noun ( plural marlin ) [countable]
[ Date: 1900-2000 ; Origin: marlinspike 'pointed metal tool for separating the threads of rope' (17-21 centuries) ; because of its long sharp nose ]
a large sea fish with a long sharp nose, which people hunt for sport