disk vs flan

disk

verb
  • To harrow. 

  • To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airstream and maximising the drag generated by the propeller. 

noun
  • A disc - either a CD-ROM, an audio CD, a DVD or similar removable storage medium. 

  • A ring- or cup-shaped enlargement of the flower receptacle or ovary that bears nectar or, less commonly, the stamens. 

  • Something resembling a disk. 

  • A type of harrow. 

  • A thin, flat, circular plate or similar object. 

  • An intervertebral disc 

flan

verb
  • To splay or bevel internally, as a window-pane. 

noun
  • A coin die. (Compare planchet.) 

  • A fan of the U.S. TV series Firefly. 

  • Baked tart with sweet or savoury filling in an open-topped pastry case. (Compare quiche.) 

  • A dessert of congealed custard, often topped with caramel, especially popular in Spanish-speaking countries. 

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