anchorage vs pier

anchorage

noun
  • The set of anchors belonging to a ship. 

  • That into which something is anchored or fastened. 

  • Something on which one may depend for security; ground of trust. 

  • The retreat of a hermit, or anchorite. 

  • A harbor, river, or offshore area that can accommodate a ship at anchor, either for quarantine, queuing, or discharge. 

  • The act of anchoring, or the condition of lying at anchor. 

  • The surgical fixation of prolapsed organs. 

  • A fee charged for anchoring. 

pier

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

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

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

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

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