23 Moby Thesaurus words for "gyrene":
   Marine Corps, Naval Reservist, Royal Marine, Royal Marines, Seabee,
   bluejacket, boot, cadet, devil dogs, frogman, gob, horse marine,
   jollies, jolly, leathernecks, marine, marines, midshipman,
   midshipmite, naval cadet, navy man, sea soldiers, swabbie