backslash vs slope

backslash

verb
  • To escape (a metacharacter) by prepending a backslash that serves as an escape character, thereby forming an escape sequence. 

noun
  • The punctuation mark \. 

  • Used erroneously in reference to, or in reading out, the ordinary slash, that is, the punctuation mark /. 

  • |passage= […] I was trying to find a web-site for which I had been given the following address: http://www.isop.ucla.edu/pacrim/pubs/korjournal.htm. […] I began to work backwards, removing first the last part of the address following the last backslash (/korjournal.htm).}} 

slope

verb
  • To try to move surreptitiously. 

  • To tend steadily upward or downward. 

  • To form with a slope; to give an oblique or slanting direction to; to incline or slant. 

  • To hold a rifle at a slope with forearm perpendicular to the body in front holding the butt, the rifle resting on the shoulder. 

noun
  • The slope of the line tangent to a curve at a given point. 

  • An area of ground that tends evenly upward or downward. 

  • A person of Chinese or other East Asian descent. 

  • The angle a roof surface makes with the horizontal, expressed as a ratio of the units of vertical rise to the units of horizontal length (sometimes referred to as run). 

  • The ratio of the vertical and horizontal distances between two points on a line; zero if the line is horizontal, undefined if it is vertical. 

  • The degree to which a surface tends upward or downward. 

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