haystack vs tube

haystack

noun
  • A standing wave in a rapid. 

  • A dish composed of a starchy food (rice, tortillas, crackers, etc.) topped by a protein (beans, cheese, meat, etc.) in combination with fresh vegetables, assembled on the plate by the diner. 

  • A mound, pile, or stack of stored hay. 

  • The text string within which another string is searched for. (see: needle in a haystack) 

tube

noun
  • A wave which pitches forward when breaking, creating a hollow space inside. 

  • Anything that is hollow and cylindrical in shape. 

  • The London Underground railway system, originally referred to the lower level lines that ran in tubular tunnels as opposed to the higher ones which ran in rectangular section tunnels. (Often the tube.) 

  • A television. Compare cathode ray tube and picture tube. 

  • A tin can containing beer. 

  • An approximately cylindrical container, usually with a crimped end and a screw top, used to contain and dispense semiliquid substances. 

  • An idiot. 

verb
  • To supply with, or enclose in, a tube. 

  • To intubate. 

  • To ride an inner tube. 

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