drone vs racket

drone

noun
  • A humming or deep murmuring sound. 

  • One of the fixed-pitch pipes on a bagpipe. 

  • One who performs menial or tedious work. 

  • A person without the ability to think critically and independently, especially one who follows a group blindly; a non-player character. 

  • A remotely controlled aircraft, an unmanned aerial vehicle (UAV). 

  • A Toyota HiAce or a similar van, especially one used by Ugandan state agents to kidnap opposition members. 

  • A male ant, bee or wasp, which does not work but can fertilize the queen. 

  • A genre of music that uses repeated lengthy droning sounds. 

  • A low-pitched hum or buzz. 

verb
  • To speak in a monotone way. 

  • To produce a low-pitched hum or buzz. 

  • To kill with a missile fired by unmanned aircraft. 

racket

noun
  • A loud noise. 

  • An implement with a handle connected to a round frame strung with wire, sinew, or plastic cords, and used to hit a ball, such as in tennis or a birdie in badminton. 

  • An illegal scheme for profit; a fraud or swindle; or both coinstantiated. 

  • A broad wooden shoe or patten for a man or horse, to allow walking on marshy or soft ground. 

  • A snowshoe formed of cords stretched across a long and narrow frame of light wood. 

verb
  • To strike with, or as if with, a racket. 

  • To make a clattering noise. 

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