pirate

Noun

• a ship that is manned by pirates

• someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation

• someone who uses another person's words or ideas as if they were his own

Verb

• take arbitrarily or by force
  • The Cubans commandeered the plane and flew it to Miami
    

• copy illegally; of published material

Related words

• Synonyms: 
  pirate ship , buccaneer , sea robber , sea rover , plagiarist , plagiarizer , plagiariser , literary pirate , commandeer , hijack , highjack