corsair

Short definition from Wiktionary

Noun

1. 1
   A French privateer, especially from the port of Saint-Malo.
2. 2
   A privateer or pirate in general.
3. 3
   The ship of privateers or pirates, especially of French nationality.
4. 4
   A nocturnal assassin bug of the genus Rasahus, found in the southern USA.
5. 5
   A Californian market fish (Sebastes rosaceus).