friend vs troll

friend

noun
  • Used as a form of address when warning someone. 

  • A lover; a boyfriend or girlfriend. 

  • A spring-loaded camming device. 

  • A person with whom one is vaguely or indirectly acquainted. 

  • A person who backs or supports something. 

  • A person, typically someone other than a family member, spouse or lover, whose company one enjoys and towards whom one feels affection. 

  • Used to refer collectively to a group of associated individuals, especially those comprising a cast, company, or crew 

  • A function or class granted special access to the private and protected members of another class. 

  • An associate who provides assistance. 

  • An object or idea that can be used for good. 

verb
  • To add (a person) to a list of friends on a social networking site; to officially designate (someone) as a friend. 

troll

noun
  • A person who posts or says inflammatory, insincere, digressive, extraneous, or off-topic messages to provoke others on the Internet for their own personal amusement or to manipulate others' perception. 

  • An instance of trolling, especially, in fishing, the trailing of a baited line. 

  • The act of moving round; routine; repetition. 

  • A song whose parts are sung in succession; a catch; a round. 

  • An ugly person of either sex, especially one seeking sexual experiences. 

  • A supernatural being of varying size, now especially a grotesque humanoid creature living in caves or hills or under bridges. 

  • Optical ejections from the top of the electrically active core regions of thunderstorms that are red in color that seem to occur after tendrils of vigorous sprites extend downward toward the cloud tops. 

verb
  • To trundle, to roll from side to side. 

  • To draw someone or something out, to entice, to lure as if with trailing bait. 

  • To saunter. 

  • To fish using a line and bait or lures trailed behind a boat similarly to trawling; to lure fish with bait. 

  • To fish in; to try to catch fish from. 

  • To post or make inflammatory or insincere statements so as to attempt to lure others into combative argument for purposes of personal entertainment or to manipulate others' perception, especially in an online community or discussion. 

  • To stroll about in order to find a sexual partner. 

  • To angle for with a trolling line, or with a hook drawn along the surface of the water; hence, to allure. 

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