nib vs pencil

nib

noun
  • The tip of a pen or tool that touches the surface, transferring ink to paper. 

  • A small and pointed thing or part; a point; a prong. 

  • The bill or beak of a bird; the neb. 

  • The shaft of a wagon. 

  • A piece of a roasted, hulled cocoa bean. 

  • Bits of trapped dust or other foreign material that form imperfections in painted or varnished surfaces. 

  • One of the handles projecting from a scythe snath. 

verb
  • To fit (a pen) with a nib. 

pencil

noun
  • A paintbrush. 

  • A writing utensil with a graphite (commonly referred to as lead) shaft, usually blended with clay, clad in wood, and sharpened to a taper. 

  • A family of geometric objects with a common property, such as the set of lines that pass through a given point in a projective plane. 

  • An aggregate or collection of rays of light, especially when diverging from, or converging to, a point. 

verb
  • To write (something) using a pencil. 

  • To mark with, or as if with, a pencil. 

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