backslash vs rail

backslash

noun
  • |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).}} 

  • The punctuation mark \. 

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

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

rail

noun
  • A vertical section on one side of a web page. 

  • A horizontal bar extending between supports and used for support or as a barrier; a railing. 

  • A large line (portion or serving of a powdery illegal drug). 

  • A railroad; a railway, as a means of transportation. 

  • A conductor maintained at a fixed electrical potential relative to ground, to which other circuit components are connected. 

  • Any of several birds in the family Rallidae. 

  • One of the lengthwise edges of a surfboard. 

  • A horizontal piece of wood that serves to separate sections of a door or window. 

  • The metal bar forming part of the track for a railroad. 

verb
  • To enclose with rails or a railing. 

  • To range in a line. 

  • To place on a track. 

  • To sexually penetrate in a rough manner. 

  • To travel by railway. 

  • To complain violently (against, about). 

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