dragnet vs tug

dragnet

verb
  • To drag a net across the bottom of a body of water. 

  • To make heightened efforts to catch a suspect. 

noun
  • Heightened efforts by law-enforcement personnel to capture suspects. 

  • A net dragged across the bottom of a body of water. 

tug

verb
  • To tow by tugboat. 

  • To masturbate. 

  • To pull or drag with great effort. 

  • To pull hard repeatedly. 

noun
  • A dog toy consisting of a rope, often with a knot in it. 

  • A trace, or drawing strap, of a harness. 

  • A tugboat. 

  • An iron hook of a hoisting tub, to which a tackle is affixed. 

  • A sudden powerful pull. 

  • An act of male masturbation. 

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