trap vs vacuum tube

trap

noun
  • Any device used to hold and suddenly release an object. 

  • A person's mouth. 

  • An exception generated by the processor or by an external event. 

  • A covering over a hole or opening; a trapdoor. 

  • A wooden instrument shaped somewhat like a shoe, used in the game of trapball. 

  • A genre of hip-hop music, with half-time drums and heavy sub-bass. 

  • The money earned by a prostitute for a pimp. 

  • A dark coloured igneous rock, now used to designate any non-granitic igneous rock; trap rock. 

  • A place in a water pipe, pump, etc., where air accumulates for lack of an outlet. 

  • The trapezius muscle. 

  • A bend, sag, or other device in a waste-pipe arranged so that the liquid contents form a seal which prevents the escape of noxious gases, but permits the flow of liquids. 

  • Trapshooting. 

  • A trick or arrangement designed to catch someone in a more general sense; a snare. 

  • A geological structure that creates a petroleum reservoir. 

  • A successful landing on an aircraft carrier using the carrier's arresting gear. 

  • Belongings. 

  • The game of trapball itself. 

  • A cubicle (in a public toilet). 

  • A vehicle, residential building, or sidewalk corner where drugs are manufactured, packaged, or sold. 

  • A fictional character from anime, or related media, who is coded as or has qualities typically associated with a gender other than the character's ostensible gender; otokonoko, josou. 

  • A machine or other device designed to catch (and sometimes kill) animals, either by holding them in a container, or by catching hold of part of the body. 

  • A mining license inspector during the Australian gold rush. 

  • An area, especially of a city, with a low level of opportunity and a high level of poverty and crime; a ghetto; a hood. 

  • A light two-wheeled carriage with springs. 

  • Someone who is anatomically male but who passes as female. 

verb
  • To ensnare; to take by stratagem; to entrap. 

  • To dress with ornaments; to adorn (especially said of horses). 

  • To capture (e.g. an error) in order to handle or process it. 

  • To successfully land an aircraft on an aircraft carrier using the carrier's arresting gear. 

  • To provide with a trap. 

  • To leave suddenly, to flee. 

  • To sell illegal drugs, especially in a public area. 

  • Of a 'trap': to trick a (heterosexual) man into having sex, by appearing to be a woman. 

  • To physically capture, to catch in a trap or traps, or something like a trap. 

  • to trap foxes 

  • To set traps for game; to make a business of trapping game. 

vacuum tube

noun
  • A type of electron tube that controls electron current through vacuum between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used. 

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