seiner vs troller

seiner

noun
  • A fishing vessel used for seining. 

  • A fisherman who uses a seine to catch fish. 

troller

noun
  • An engine-powered fishing boat, used for moving slowly while fishing lines drag behind, sometimes able to sail in shallow water. 

  • A troll; a user who maliciously provokes others. 

  • One who fishes by trolling. 

How often have the words seiner and troller occurred in a corpus of books? (source: Google Ngram Viewer )