crossbar vs piling

crossbar

noun
  • Any transverse bar or piece, such as a bar across a door, or the iron bar or stock which passes through the shank of an anchor. 

  • The top of the goal structure. 

  • The top tube of a bicycle frame. 

verb
  • To mark with a pattern of transverse bars. 

piling

noun
  • The process of building up, heating, and working fagots or piles to form bars, etc. 

  • A structural support comprising a length of wood, steel, or other construction material. 

  • The act of heaping up. 

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