A marlin is a large, fast ocean fish with a long, spear-like upper jaw. It is popular in sport fishing because of its size and strength.
Probably from 'marlinspike', a pointed tool used by sailors, which itself comes from French 'marteau' (hammer) and 'pique' (spike). The fish was named for its long, spike-like bill.
The marlin is basically named after a sailor’s spike, which its nose really does resemble. Its incredible speed—among the fastest of all fish—makes it the perfect 'sports car' of the sea.
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