half-moon vs sickle

half-moon

noun
  • Anything shaped like a crescent, especially the base of a fingernail. 

  • A semicircular or crescent-shaped Filipino butter cookie. 

  • The moon in its first or last quarter when only half the visible face is illuminated; a quarter moon. 

  • Synonym of black and white (“type of cookie”) 

sickle

noun
  • Any of the sickle-shaped middle feathers of the domestic cock. 

  • An implement having a semicircular blade and short handle, used for cutting long grass and cereal crops. 

adj
  • Shaped like the blade of a sickle; crescent-shaped. 

verb
  • Of red blood cells: to assume an abnormal crescent shape. 

  • To deform (as with a red blood cell) into an abnormal crescent shape. 

  • To cut with a sickle. 

How often have the words half-moon and sickle occurred in a corpus of books? (source: Google Ngram Viewer )