chiffon vs cobweb

chiffon

noun
  • A lightweight, balanced plain-woven sheer fabric, or gauze, like gossamer, woven of alternate S- and Z-twist crepe (high-twist) yarns made of silk, polyester, or cotton. 

  • Any purely ornamental accessory on a woman's dress, such as a bunch of ribbon, lace, etc. 

cobweb

noun
  • A spiderweb, or the remains of one, especially an asymmetrical one that is woven with an irregular pattern of threads. 

  • One of its filaments; gossamer. 

  • An intricate plot to catch the unwary. 

  • Something thin and unsubstantial, or flimsy and worthless; valueless remainder. 

  • fuzzy inexact memories. 

  • A web page that either has not been updated for a long time, or that is rarely visited. 

  • The European spotted flycatcher, Muscicapa striata. 

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