metre vs pencil

metre

verb
  • To put into metrical form. 

noun
  • The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in 1/299 792 458 seconds. The metre is equal to 39+⁴⁷⁄₁₂₇ (approximately 39.37) imperial inches. 

  • The rhythm or measure in verse and musical composition. 

pencil

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

  • To write (something) using a 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. 

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