scaffold vs viaduct

scaffold

noun
  • A structure that provides support for some other material. 

  • A structure made of scaffolding for workers to stand on while working on a building. 

  • An elevated platform on which a criminal is executed. 

  • An accumulation of adherent, partly fused material forming a shelf or dome-shaped obstruction above the tuyeres in a blast furnace. 

  • An elevated platform on which dead bodies are ritually disposed of, as by some Native American tribes. 

verb
  • To sustain; to provide support for. 

  • To set up a scaffolding; to surround a building with scaffolding. 

  • To dispose of the bodies of the dead on a scaffold or raised platform, as by some Native American tribes. 

viaduct

noun
  • A bridge with several spans that carries road or rail traffic over a valley or other obstacles. 

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