crack vs knockdown

crack

noun
  • A sharp, resounding blow. 

  • An attempt at something. 

  • The tone of voice when changed at puberty. 

  • A program or procedure designed to circumvent restrictions or usage limits on software. 

  • Vagina. 

  • The space between the buttocks. 

  • A narrow opening. 

  • Any sharp sound. 

  • A thin and usually jagged space opened in a previously solid material. 

  • A sharply humorous comment; a wisecrack. 

  • a meaningful chat. 

  • Something good-tasting or habit-forming. 

  • Extremely silly, absurd or off-the-wall ideas or prose. 

  • Conviviality; fun; good conversation, chat, gossip, or humorous storytelling; good company. 

  • The sharp sound made when solid material breaks. 

  • Business; events; news. 

  • Crack cocaine, a potent, relatively cheap, addictive variety of cocaine; often a rock, usually smoked through a crack-pipe. 

adj
  • Highly trained and competent. 

  • Excellent, first-rate, superior, top-notch. 

verb
  • To change rapidly in register. 

  • To become debilitated by psychological pressure. 

  • To form cracks. 

  • To make a cracking sound. 

  • To break open or crush to small pieces by impact or stress. 

  • To make a crack or cracks in. 

  • To make a sharply humorous comment. 

  • To open slightly. 

  • To overcome a security system or component. 

  • To break down (a complex molecule), especially with the application of heat: to pyrolyse. 

  • To break apart under force, stress, or pressure. 

  • To alternate between high and low register in the process of eventually lowering. 

  • To strike forcefully. 

  • To cause to yield under interrogation or other pressure. 

  • To circumvent software restrictions such as regional coding or time limits. 

  • To tell (a joke). 

  • To break down or yield, especially under interrogation or torture. 

  • To solve a difficult problem. 

  • To cause to make a sharp sound. 

  • To realize that one is transgender. 

  • To barely reach, attain to (a measurement, extent). 

  • To open a canned beverage, or any packaged drink or food. 

knockdown

noun
  • An overwhelming blow. 

  • The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface. 

  • An act of knocking down or the condition of being knocked down. 

  • A shelter erected for use as a temporary dressing room. 

  • A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly. 

  • a short pass played downwards, for example from the head onto someone's feet. 

  • A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced. 

  • The use of a reagent such as an oligonucleotide with sequence complementary to an active gene or its mRNA transcript, to interfere with the expression of said gene. 

adj
  • To be formed into a head by upsetting in fastening. 

  • reduced in price, originally to a price below which an article would not be sold by the auctioneer 

  • powerful enough to overwhelm or knock down 

  • Capable of being taken apart for packing or removal. 

verb
  • To employ the knockdown technique 

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