pier vs stanchion

pier

noun
  • A rectangular pillar, or similar structure, that supports an arch, wall or roof, or the hinges of a gate. 

  • A structure supporting the junction between two spans of a bridge. 

  • A similar structure, especially at a seaside resort, used to provide entertainment. 

  • A raised platform built from the shore out over water, supported on piles; used to secure, or provide access to shipping; a jetty. 

stanchion

noun
  • A vertical pole, post, or support. 

  • A framework of such posts, used to secure or confine cattle. 

verb
  • To confine by means of stanchions, typically used for cattle. 

  • To erect stanchions, or equip something with stanchions. 

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